High quality rotary switch/No power required/No additional software needed/Fully shielded metal case with Anti-skid feet | Works with standard serial DB 9 pin female-male connector/Easy to use and install/Hot-swappable (no need to reboot computer) | Allows you to easily switch a monitor between 2 computers/Simply press the button to switch/Female connectors with plated contacts/2 PC to 1 Serial Device | 2 serial devices to 1 PC/1x 2 Port Serial Switch 2 to 1 Selector Box/manual selection switching | Cable not included

Dual USB 3.0 Super Speed mount cable allows you to install it into your car, motorcycle, boat, trailer and etc. Data transfer speed is up to 5 gbps, that is around 10 times faster than USB 2.0 | High Speed USB3.0 extension cable with USB Input for vehicle, marine, bike, motocycle & etc | It comes with all accessories needed for installation such as screws, braceket, flush mount components & waterproof lid. What you need is basically a 28mm to 30mm hole to fit in the cable. | Connects devices that use USB Type A ports | 2X USB3.0 cable and plugs, 3 foot - 1 meter long cable

Dual USB 3.0 Super Speed mount cable allows you to install it into your car, motorcycle, boat, trailer and etc. Data transfer speed is up to 5 gbps, that is around 10 times faster than USB 2.0 | High Speed USB3.0 extension cable with USB Input for vehicle, marine, bike, motocycle & etc | It comes with all accessories needed for installation such as screws, braceket, flush mount components & waterp

Each STD module is a resistive branching network with RF filtering on each of the four channels

2 x RCA Male / 1 x 3.5mm Stereo Female, Y-Cable, 6 inch Gold Plated Connector | Audio / Video Products | Audio / Video Adaptors; 30S1-01260 | Connection: 3.5mm Stereo Female Jack | Length: 6 inches | Color: Black | Weight: 0.04 lbs.

1.Compatibility: MacBook Air 13 inch A1369,2010 Model MC503 MC504,2011 Model MC965 MC966 | 2.Compatibility: MacBook Air 13 inch A1466,2012 Model MD231 MD232 | 3.Compatibility: MacBook Air 13 inch A1466,2013 Model MD760A MD761A,2014 Model MD760B MD761B | 4.Compatibility: MacBook Air 13 inch A1466,2015 Model MJVE2 MJVG2,2016 Model MMGF2 MMGG2 | 5.Package included: 2set/20pcs screws&1pc Pentalobe 5 Screwdriver

1.Compatibility: MacBook Pro Retina Display 13 inch A1425,2012 Model MD212 MD213, 2013 Model ME662 | 2.Compatibility: MacBook Pro Retina Display 13 inch A1502,2013 Model ME864 ME865 ME866, 2014 Model MGX72 MGX82 MGX92,2015 Model MF839 MF840 MF841 | 3.Compatibility: MacBook Pro Retina Display 15 inch A1398,2012 & Early 2013 Model MC975 MC976 ME664 ME665 | 4.Compatibility: MacBook Pro Retina Display 15 inch A1398,2013 Model ME293 ME294, 2014 Model MGXA2 MGXC2,2015 Model MJLQ2 MJLT2 | 5.Package included: 2set/20pcs screws&1pc Pentalobe 5 Screwdriver

Compatibility: 2 types camera eyecup fits for Canon 6D Mark II, 6D, 5D Mark II, 5D, 90D, 80D, 70D, 60D, 60Da, 50D, 40D, 30D, 20Da, 20D, 10D,etc, keeping the viewfinder clean | Easy Installation: Replace Canon eyepiece perfectly. With superior design, the rubber piece of the eyecup fixes the plastic part tightly. So be easy to installation | Flexibility: The oval one is 360 degree rotatable, so you can adjust it for horizontal or vertical view | Protection: The eyepieces protect viewfinder from unwanted light, dust, impact and scratches with plastic and rubber body, improving viewfinder optics | Comfortable: A cushion around the viewfinder to protect your eyes, and especially for glasses wearers thank to ergonomic oval soft TPU rubber

Compatibility: 2 types eyecup for Canon T7i, T6s, T6i, T5i, T4i, T3i, T2i, T1i, XSi, SL3, SL2, SL1, T7, T6, T5, T3, XS, 3000D cameras replaces Canon Ef Eye cup | Original Design: Replaces Canon original eyepiece. The silicone piece fits the plastic part tightly | Extended Design: With extended soft silicone part design, makes it bigger than the original cup. So to protect the viewfinder from impact & scratches, and block stray light effectively | Comfortable: The soft silicone makes eyes comfortable, especially for glasses wearers. To protect your glasses from scratches | Materials: Made of premium silicone & ABS plastic, the exterior is flexible and gets strong abrasion-resistance

Professional High-quality Crossover：This is a professional frequency divider, which is widely installed in the speaker. Playing an important role of the total frequency segmentation. Treble and bass dual frequency support, helps to transmit the treble to the tweeter unit, and divide the bass into subwoofer unit | HIFI Sound Quality：Make the treble clear and increase the of the bass, freely enjoy clear and music.To separate the mixed audio into a treble, bass, and then were sent to the corresponding treble, bass speaker unit in playback, resulting in enhance the sound quality purposes | High Quality and Super Durability: wire wound ceramic resistor and high-quality metal film capacitors, ensure its large load power, long-term durability, never burnout.Large capacity, reasonable design, beautiful appearance, circuit board design with cutouts and lines, for welding, very suitable for DIY | Treble and Bass dual Frequency Dividing: It can be used in a wide range. It can be used with tweeter + bass two-way frequency speakers, 2.1 mid-high-range small satellite boxes and car full-range speakers, and can also use single-use treble or single-use bass. Speaker impedance of 4-16 ohms can be used, as long as the power of the speaker is below 400W | Quality Service：We have a 24-hour online professional customer service team.If the product has any quality problems or you have any questions about this product, you can us at any time,supports return within one year,we will try our best to solve your problem in time,please rest assured to buy | | | | |

2IN-1-OUT - 2 Input 1 Output audio and video selector box switches between AV sources with button on front panel, without distortion or time loss - Connects 2 video devices to 1 TV set | Easy to Install: Simple plug and play, push button design with no additional software or extra power source needed. BONUS RCA composite Cable included | Premium Construction: Component switch box offers a high quality, compact design with a front component video selection buttons and color coded RCA connectors in the back for easy pairing | A/V SPECS - Video - Input level Resistance - VS 0.8-1.0Vp-p/75ohm, Output level Resistance - VS 0.8-1.0Vp-p/75ohm Audio - Input level Resistance - 2V(RMS)/47Kohm, Output level Resistance - 2V(RMS)/1Kohm | Perfect For: Ideal for DVD DVR VCR players, video game consoles (including Xbox, PS2, PS3, Wii, etc.) Comcast Xfinity box and more- connecting to TV with RCA connectors

【Function】 The 2 way crossover consists of bass inductor and magnet, which can improve bass sag and locate solderless plug in socket. Reasonable wiring, nice components to ensure the right sound to enhance your experience | 【Easy to Use】 The car speaker frequency divider is easy to install, connect the corresponding line, you can immediately tighten | 【Material】 Made of premium metal and double layer heat dissipation ABS plastic housing, our speaker crossover is sturdy, impact and wear resistant for long service life | 【Performance】 Excellent sound amplification tool with overcurrent protection can ensure safe and reliable use | 【What You Get】 2 x 2 Way Car Audio Tweeter Crossover

[High Performance] The use of ultra large grain capacitors ultra high power inductors and resistors. High power special aluminum film resistor, fast heat dissipation, so that the crossover life longer. | [Widely Applicable] This sound frequency divider is suitable for 10 inch, 12 inch, 15 inch outdoor speakers, stage speakers, conference speakers, etc. Connect the wire and use, no complicated operation. | [Function] The crossover distinguishes the sound signals of different frequency bands, amplifies them separately, and then sends them to the speakers in the corresponding frequency bands for playback. | [Premium Sound Playback] 2 way crossover, electronic crossover processing is required for premium sound playback. Stage professional speaker DIY upgrade tool to get long term premium sound quality. | [Professional] Crossover point in place, treble with high sensitivity with electronic automatic protector, bass with oversized particle capacitors and ultra high power inductor protection. Longer life of the speaker system.

[Premium Sound Reproduction] 2 way crossover, electronic crossover processing is required for premium sound reproduction. Stage professional DIY upgrade tool for speakers to get -term premium sound quality. | [High Performance] The use of ultra-large grain capacitors, ultra-high power inductors and resistors. High-performance special aluminum film resistor, fast heat dissipation, so that the crossover service life becomes longer. | [Function] The crossover network distinguishes the sound signals of different frequency bands, amplifies them separately, and then sends them to the speakers in the corresponding frequency bands for playback. | [Professional] Crossover point in place, treble with high sensitivity with electronic automatic protection, bass with oversized particle capacitors and ultra-high power inductance protection. Longer speaker system life. | [Widely used] This audio frequency divider is suitable for 10 inch, 12 inch, 15 inch outdoor speakers, stage speakers, conference speakers, etc. Plug and use the cable, no complicated operation.

Practical: Crossover is a device that separates the sound signals of different frequency bands, amplifies them separately, and then sends them to the corresponding frequency band speakers for playback. | High Power: 2 way crossover has large capacitors, high power inductors, high power special aluminum film resistors, excellent heat dissipation, long service life. | Treble Protection: 2 way speaker crossover has built in insurance to guard the treble, the treble is clear and bright and protected after use. | Widely Applicable: 2 way passive crossover is suitable for a variety of single 10 inch, 12 inch, 15 inch, 18 inch professional conference stage speakers. | Premium Material: 2 way frequency divider is made of premium PCBA material, strong and durable, wear resistant and pressure resistant, long service life.

Audio switch for 3.5mm (1/8") audio jacks. It can be used in two directions: 2 IN 1 OUT & 1 IN 2 OUT | 2 IN 1 OUT: Connect with two audio sources (example: computer and TV), then connect with one output (example: speaker). The A/B switch pot is for selecting one of the audio sources to be routed to the output. | 1 IN 2 OUT: Connect with one audio source (example: mp3), then connect with two outputs (example: headphones and speakers). The A/B switch pot is for selecting one of the outputs (2 outputs are not simultaneous). | Microphone headset also compatible: This box works with any four-segment (TRRS) audio jacks, means that if you plug in headphones with a built-in microphone, the microphone will work through the switch. TRS also Compatible. | Built in mini size aluminum chassis, looks nice and durable. Passive switch that does not need power supply.

Max. Power: 600W | Impedance: 4 or 8 Ohm | Crossover Freq: 2,000 Hz | Dimensions : L - 6.5" x W - 4.5" x H - 2" (165.1mm x 114.3mm x 50.8mm).

[IMPROVE BASS SAG] The frequency divider composed of bass inductor and polymer magnet improves bass sag, enhancing the sound quality of your car audio system. | [GOOD HEAT DISSIPATION] High gloss double heat deflection dissipating ABS plastic shell provides sufficient heat dissipation, ensuring the longevity of the crossover. | [SAFETY ENSURED] This excellent sound enhancement tool features overcurrent protection for safe and reliable use. | [EASY TO WIRE] The high frequency capacitor and plug-in socket design make wiring quick and simple. | [IMPORTANT PARAMETER] Output power of 60W, working voltage of 12V, and maximum power of 120W make this crossover widely applicable for most cars.

PURPOSE OF USE: Frequency divider will be different bands of sound signals to distinguish, respectively, to amplify, sent to the corresponding frequency band of speakers and then play again. | EASY WIRING: 2 way speaker crossover with terminal block, convenient wiring, suitable for a variety of 15‑18 inch professional conference or stage speakers, etc. | HEAT DISSIPATION: Speaker crossover filters use large capacitors, ultra high power inductors and resistors. Resistors are high power special aluminum film resistors, better heat dissipation function. | CLEAR TREBLE: Frequency divider built in insurance to preserve the treble, use the treble clear and bright and protection in place. In the sound playback, electronic crossover processing is required. | REASONABLE DESIGN: 2 way speaker crossover is very easy to use, reasonable design, beautiful appearance, longer service life, can meet your different needs.

Professional high and low frequency divider, greatly improve the sound effect of the speaker, reasonable layout, beautiful appearance, fine workmanship. | Large bass inductance + Non-polar capacitor + MPT metal capacitance + Treble protector. | The Large bass inductance of 66mm enables the low frequency signal to pass quickly, reduce the calorific value, show the frequency response, and make the low frequency more full. The 16mm professional frequency divider is adopted, and the effect is far better than the traditional 8-12mm. | 250V metal film capacitor, treble part uses WEAH250V4.7uF metal film capacitor with treble protection device. The large inductance is used at low frequency to make the low frequency fuller, the Non-polar capacitor 4.7uF filters out the high part of the low frequency to make the low frequency more pure and outstanding. | The input of frequency divider can be directly inserted into the wire clip, convenient to use. Compact size, easy to install.

Overcurrent Protection: Excellent sound amplification tool with overcurrent protection can ensure safe use and reliable use. Reasonable wiring, nice components to ensure the right sound to enhance your experience, very practical. | Exquisite Workmanship: High gloss double layer heat dissipation ABS plastic housing, exquisite workmanship and very careful materials. | Easy to Use: The car speaker frequency divider is easy to use, connect the corresponding line, you can immediately tighten. | Product Detail: Built to meet standard specification, strictly follow factory quality control.Fine workmanship, wear‑resistance and the service life is longer. | Product Detail: Built to meet standard specification, strictly follow factory quality control.Fine workmanship, wear‑resistance and the service life is longer.

Compatible with:GP328D GP338 GP328D+ GP338D+ Series:XPR 6000 XPR 6100 XPR 6350 XPR 6380 XPR 6550 XPR 6580 XPR 6500 XPR 6300 XPR 7000 Series: XPR 7550 XPR 7580 XPR 7350 XPR 7380 XPR 7000e Series: XPR 7550e XPR 7580e XPR 7350e XPR 7380e APX 6000 APX 6000XE APX 7000 APX 7000XE APX 7000L APX 8000 APX 8000XE SRX 2200 XiR P8200 XiR P8208 XiR P8260 XiR P8268 XiR P8608 XiR P8660 XiR P8668 DP3400 DP3401 DP3600 DP3601 DP4400 DP4401 DP4600 DP4601 DP4800 DP4801 DGP4150 DGP4150+ DGP6150 DGP6150+ | Replaceable coil tube and earbud. Radio adapter has integrated Push-to-Talk (PTT) button. 2-Wire Design for the ability to split mic and speaker wires. | deal for demanding covert security applications where sound clarity and earpiece durability are of paramount importance. Excellent for use in police, military, nightclubs, bars, paintball, security, restaurants, hotels, bouncer, warehouses, and noisy environments. | deal for demanding covert security applications where sound clarity and earpiece durability are of paramount importance. Excellent for use in police, military, nightclubs, bars, paintball, security, restaurants, hotels, bouncer, warehouses, and noisy environments. | Package Content:1 Earpiece, 2 Mushroom Ear tips

Easy to Use: Features simple plug in operation | Compatible With: Any telephone system with DSL service | Includes: 1 pack of 2 wire (1 line) Ivory DSL Filter (ADSL Filter) | Noise Reduction: Reduce digital noise and unwanted interference caused by DSL | Perfect For: Use with DIRECTV, Satellite Dish, Comcast, TIVO (DVR), Telephone, Fax, Answering Machine, Printers, Modems, Computers and more

Easy to Use: Features simple plug in operation | Compatible With: Any telephone system with DSL service | Includes: 2 pack of 2 wire (1 line) Ivory DSL Filter (ADSL Filter) | Noise Reduction: Reduce digital noise and unwanted interference caused by DSL | Perfect For: Use with DIRECTV, Satellite Dish, Comcast, TIVO (DVR), Telephone, Fax, Answering Machine, Printers, Modems, Computers and more

Easy to Use: Features simple plug in operation, with Built-in Splitter | Compatible With: Any telephone system with DSL service | Includes: 5 pack of 2 wire (1 line) Ivory DSL Filter (ADSL Filter) | Noise Reduction: Reduce digital noise and unwanted interference caused by DSL | Perfect For: Use with DIRECTV, Satellite Dish, Comcast, TIVO (DVR), Telephone, Fax, Answering Machine, Printers, Modems, Computers and more

Increases the range of your wireless device | High Gain Omni-Directional 8dBi Router, Wireless Transmitter, WiFi Booster Antenna Cable | Use for MINI PCI-E interface | 2 x 8dBi RP-SMA male (Hole in Center) Antenna for 2.4GHz 5.8GHz. (6.3in/16cm) | 2 x U.FL to RP-SMA Female connector cable.(7.9in/20cm)

Frequency: 2.4GHz / 5.8GHz || Big PCB Size: Length 3.74in, Width 0.54in | High Gain 8dBi Omni-Directional internal Antennas | Use for Mini PCIe Card(Cannot be used for M.2/NGFF interface.) | 2 x Cables of 50cm length | Compatible with Mini PCIe interface: 3160, 7260, 6235, QCA6174, MC7700, AR5B22, DW1510, RTL8188CE, 633ANHMW, 4965AGN, QCA9005, 8260HMW, BCM94313HMGB, BCM94322HM8L Card etc.

Frequency: 2400-2500MHz(2.4GHz), 4900-5900MHz(5.8GHz) || Big PCB Size: Length 3.74in, Width 0.54in | High Gain 8dBi Omni-Directional Internal Antenna | Use for M.2(NGFF) Slot Cards(Cannot be used for Mini PCIe Slot.) | 2 x Cables of 50cm length | Compatible with M.2 interface: 7260 7265 3160 3165 8260 8265 17265 18265 9260 9560 ax200 ax201 ME906E ME906V ME906J ME906C NGFF M2M WWAN Card etc.

High gain WIFI antenna- This 8dBi Omni-directional antenna with dual band 2.4GHz / 5.8GHz and RP-SMA Male connector which reduces interference, extend wireless range to dead spot | Pigtail Specifications- Coming with 2 pieces connector cables,Length: 35cm including the connectors; Connector type: U.fl / IPEX (MHF2) to RP-SMA Female | High quality- The WIFI antenna case is made of hard plastic, sturdy and durable. The internal is using high quality circuit board ensures maximum and stable signal quality | Multi-use- This wireless antenna works with most wireless devices, such as Mini PCIe Wireless Card Routers / Repeater / Range Extender / Desktop PC / Mini ITX Build / PCI Card / FPV UAV Drone / PS4 Build. WARM NOTICE: this wireless router antenna only use for MINI PCI-E Interface, Do Not Use for M.2 (NGFF) Interface, please check your connectors before buying | Easy to install- This wireless wifi antenna is easy to install, Simply replace current antenna to increase signal strength

HIGH QUALITY LENS CAPS | 2 PACK | UNIVERSAL FRONT LENS CAP: Compatible with all camera lenses such as Nikon, Canon, Sony, Olympus ETC | SNAP-ON CENTER PINCH. | QUALITY ICE BRAND

ROR is safe and versatile for all delicate surfaces. | ROR is specifically designed to emulsify and remove microscopic oil residues- a by product of environmental pollution- from the surface and pores of glass and acrylic. | Non-flammable and 100% safe for coated lenses under all normal circumstances and proper technique, leaving no streaks or residue it safely breaks down and removes dust, dirt, and oil from all coated lens surfaces | Made in the USA of high purity quality ingredients

Audiophile grade circuitry, UL, VDE approved silver plated brass contact switches for optimal sound transfer | IN/OUTPUT through luxury gold plated banana sockets which can accomodate up to 4mm plugs or wires | 200W RMS power handling, suitable for 8 ohm and above speakers | Includes pre-printed and blank room labels to mark speaker locations | Dimensions: 10.5" L x 5.3" W (includes banana sockets) x 2" H

REDUCE VIBRATION and RESONANCE. Absorbing up to 95.32% of vibration and resonance, Hudson Hi-Fi’s Isolation Feet offer an effective solution for optimizing the true sound of stereo equipment. Isolation Feet effectively reduce vibration for all sensitive equipment. | PRECISION & CLARITY. Hudson Hi-Fi’s proprietary Platinum Silicone composite is designed to target sub and supersonic micro-vibrations to reduce resonance and further enhance sound. | SPECIFICATIONS. Durometer 20 (Shore A). Ideal for 30- 50lb components. Dimensions: 2" Diameter, 1" height. Temperature resistance of -40 ~+240 Degrees Celsius. | DURABLE & EASY TO INSTALL. Just place under your desired isolated component. Silicone preserves its form and does not deteriorate over time. Best of all, it leaves no black residue! | Excellent for Isolating Speakers, Subwoofers, Turntables, and Other Audio Equipment from Vibrations. Tightens Bass, Improves Sound

Includes: Pair of 6.5" Marine Speakers. Speaker Wire. Mounting Screws. Owner's Manual. Warranty Card. Features: Pair RockvilIe RSM65B 6.5" 320 Watt Waterproof Shallow Marine Speakers | CEA Compliant Power Ratings. Power Rating: 160 Watts Peak /40 Watts RMS Per Speaker. 6.5 Dual injection Cone Speaker System. Fully Marinized Against Salt & Fresh Water Conditions | Completely Waterproof and rustproof. Molded ABS plastic basket. Rubber Surround. 1 Voice Coil. 5.4 oz Y30 magnet. Pre-installed mounting screws included. Perfect for both marine, outdoor, and car use | Impedance: 4 Ohms. Frequency Response: 60Hz - 18KHz. Sensitivity: 90 dB. Total Diameter: 7.32 inches. Cutout Diameter: 5.31 inches. Total Height: 1.57 inches. Mounting Depth: 0.925 inches

Package Includes: (1) Pair of RockvilIe 6.5" 600w ATV/UTV/RZR/CART/Polaris Speaker w/Multi Color LED+Remote. (1) RockvilIe R14G50MSW 50 Foot Spool Marine Waterproof 14 AWG Speaker Wire White. Pair of 6.5" marine speakers. 16.4 feet of Speaker Wire. Mounting Screws. LED Remote Controller. Features: RockvilIe RMC65L 6.5 2-Way 300 Watt Marine Boat Speakers with LED Light System. CEA Compliant Power Ratings. Power Rating: 300 Watts Peak /75 Watts RMS Per Speaker | System Power: 600 Watts Combined. 19 Dynamic LED Modes. 20 Switchable static LED Colors. 256-Grade PWM. Adjustable LED Strobe Speed. 5 Adjustable LED Brightness Settings. Slim Card Type LED Remote. Demo LED Mode. Included Remote can be paired with one or more speakers. Fully Marinized Against Salt & Fresh Water Conditions. Completely Waterproof and rustproof. Stainless Steel Terminals. Molded ABS plastic basket. Polypropylene Mica Injected Cone. Rubber Surround. High quality ferrite magnet | 13mm (0.5 inch) Polymer Tweeter. Oversized 1 CCAW Kapton Voice Coil. Pre-installed mounting screws included. Perfect for both marine, outdoor, and car use. Impedance: 4 Ohms. Frequency Response: 55Hz - 20KHz. Sound Pressure Level: 91dB @ 1w/1m. Total Diameter: 7.09. Cutout Diameter: 5.31. Total Height: 2.48. Mounting Depth: 2.48. Features: RockvilIe R14G50MSW 50 Ft Marine/Boat White Speaker Wire. Gauge: 14 Gauge. For Marine Audio Applications. Waterproof insulation | Also great for car audio applications. Stranding: 72x0.15mm x 2C (72 Strands of 0.15mm Wire per Wire). Braided Super-Flex Design Ensures Optimum Surface Area and Flexibility. Delivers Impressive Clarity, Bass Response, and Dynamic Range. Eliminated Unwanted Noises and Maximizes Signal Transfer. Color: White. Marine Grade Wire. Engineered to withstand daily harsh marine conditions. protected against corrosion and its soft, flexible PVC jacket surrounds. excellent signal transfer. | UL1426 Premium Oxygen Free Copper Boat Cable. Resistant to extreme cold, salt water, battery acid, oil, gasoline and ultra-violet radiation. Exclusive insulation is rated at 600 volts, 105 C dry and 75 C wet, and is resistant to heat and abrasion. Drawn copper, unidirectional lay for ultimate in sound quality. Exceeds all UL 1426, US Coast Guard Charterboat (CFR Title 46) and ABYC standards.

This is the latest version 2.13inch e paper display HaT,Compatible with Raspberry Pi Zero/Zero W/Zero WH/2B/3B/3B+/4B,Jetson Nano | Ultra low power consumption, basically power is only required for refreshing | Preserved solder pads for SPI interface, compatible with other controller boards like Arduino/Nucleo, etc. | Onboard voltage translator, compatible with 3.3V/5V MCUs,Comes with development resources and manual (examples compatible with Raspberry Pi/Arduino/STM32) | No backlight, keeps displaying last content for a long time even when power down

This is 2.13inch E-Ink display HAT with Raspberry Pi 40PIN GPIO extension header, compatible with Raspberry Pi series boards, Jetson Nano. 250x122 resolution, Black and White Two Display colors, with embedded controller, communicating via SPI interface, supports partial refresh. | No backlight, keeps displaying last content for a long time even when power down. Ultra low power consumption, basically power is only required for refreshing. | SPI interface, for connecting with controller boards likeArduino/STM32, etc. Onboard voltage translator, compatible with 3.3V / 5V MCUs. | Version Notice: The driver board is Rev2.1 (Version 2.1), which is independent of the screen version. Currently, there is only Rev2.1 (Version 2.1) for the driver board and QC label V4 is for the screen version, QC label V4 is currently being shipped. | Comes with online development resources and manual (driver board circuit diagram, examples for Raspberry Pi/Jetson Nano/Arduino/STM32): bit.ly/3hZh77i

2.1mm Focal Length - This camera lens features a 2.1mm focal length to make every detail so clear that no message will be missed, thus preventing danger. | 150° Wide Angle - This IP camera lens supports 150° wide angle, which gives you a full vision. Makes whole situation under control. | 2.5mm F-number High Definition - This IP camera lens adopts high F-number up to 2.5mm to give you a super clear vision. | Precise Compatibility - The M12*0.5 lens is widely suitable for both 1/3'' & 1/4'' CCD chips with no stuck or conflict. | IR Lens - This CCTV lens supports night vision which gives you a 24-hour protection. So reliable.