OVERALL SIZE : 13 x 12 mm / 0.51 x 0.47 inches (D*H). | APPLICATION : Protect the BNC-B Female port from dust. | FEATURE : for BNC-B Female Port | MATERIAL : Silicone. | PACKAGE CONTENT : 10 x BNC-B Port Dust Covers.

OVERALL SIZE : 9.5 x 4 x 6 mm / 0.37 x 0.16 x 0.24 inches (L*W*H). | APPLICATION : Protect the Type C from dust. | COLOR : White. | MATERIAL : Silicone. | PACKAGE CONTENT : 10 x Type C Dust Covers.

PARAMETER - rated power: 10W; impedance: 4 Ohm;for LCD TV; Type: Full-frequency Antimagnetic. | SIZE - 78 x 78 x 39 mm / 3 x 3 x 1.54 inch (L*W*H); Back Diameter : 47mm / 1.85 inch; Hole Pitch: 60 x 60 mm / 2.36 x 2.36 inch. | FIT for - robot, advertising machine, game machine, integrated machine special speaker,phone, laptop, etc. | APPLICATION - suitable for all kinds of sound source fabrication, the sound is clear and melodious without distortion. | PACKAGE CONTENT - 4 x Antimagnetic Stereo Speaker.

This is a 12mm focal length camera lens. | It has F2.0 large aperture. | This CCTV camera is suitable for all IP cameras with M12*0.5mm mount. | It allows more of the scene to be included in the photograph and performs well during the day. | It is easy to install and remove without affecting the installation and use of other accessories.

16mm 20 degree wide angle board lense for CCTV cameras has standard M12x0.5 thread. | it is suitable for 1/3" CCD chipsets, with an aperture of F2.0. | Standard M12x0.5 thread. | Convenient and practical. | Comfortable and easy to use.

This is a 16mm focal length camera lens. | It has F2.0 large aperture. | This CCTV camera is suitable for all IP cameras with M12*0.5mm mount. | It allows more of the scene to be included in the photograph and performs well during the day. | It is easy to install and remove without affecting the installation and use of other accessories.

Color: Black; Material: Plastic; Focal Length Description: 16 mm; Lens Type: Wide Angle；Outer diameter 14mm/0.55 inch; Thread Type：M12; Aperture D/f': F2.0; Package List: 1 x 16mm 5MP CCTV Camera Lens | CCTV camera is widely used in homes, factories, shops, bars, parking lots, warehouses, etc. Suitable for monitoring indoor and outdoor areas to avoid accidents. | Standard M12x0.5 screw connector, suitable for most types of surveillance cameras. | NOTE: Products with electrical plugs are designed for use in the US. Outlets and voltage differ and this product may require an adapter or converter for use in your destination. Please check compatibility before purchasing. | The camera glass lens adopts a multi-layer coating process, using industrial-grade optical glass. The multi-layer coating makes the image clear and lifelike, and the night vision is clear and visible. The wide angle allows more of the scene to be included in the photo and performs well in daylight. It can record and reflect the subject's movement speed and rhythm changes. Suitable for indoor and outdoor areas that require attention.

28mm Speaker, rated power is 1W, impedance is 8 Ohm | High sensitivity, loud voice, good and clear sound quality | It is a speaker as a replacement for your sound system | The welding interface is easy to install and is made of good rubber rubber to extend the life of the speaker. | Adequate volume, it will be your best choice if you have a good application.

15mmx24mm Magnetic Speaker, rated power is 1W, impedance is 8 Ohm | High sensitivity, loud voice, good and clear sound quality | It is a little speaker as a replacement for your DIY projects. | Adequate volume, it will be your best choice if you have a good application. | Mainly use for replace the Magnetic Speaker in Electronic and Navigator equipment

Frequency: 3500Hz | Circuit Filter Characteristics: Bass 12 dB/oct, Treble 12 dB/oct; Product Name: Crossover Filters Frequency Divider | Color: White,Red,Yellow; Material: Plastic,Metal,Electronic Parts | Dimension: 8.5 x 6 x 2cm/ 3.3 x 2.4 x 0.8 inches(L*W*H); Package Content: 2 x Crossover Filters Frequency Divider | Rated Power: 100W

This is a 16mm focal length camera lens; It has F2.0 large aperture. | High definition image, good color reduction and small distortion. | This CCTV camera is suitable for all IP cameras with M12*0.5mm mount. | It allows more of the scene to be included in the photograph and performs well during the day. | It is easy to install and remove without affecting the installation and use of other accessories.

This is a 2.8mm focal length camera lens; It has F2.0 large aperture. | High definition image, good color reduction and small distortion. | This CCTV camera is suitable for all IP cameras with M12*0.5mm mount. | It allows more of the scene to be included in the photograph and performs well during the day. | It is easy to install and remove without affecting the installation and use of other accessories.

Material:Plastic,Metal,Brass | Length:6m/20feet; Cable Diameter:3mm/0.12inch | Net Weight:135g; Color:Black | Resistance:50Ohm | Package Content:2 x RP-SMA Male to SMA Male Coaxial Cable

Product Name: Crossover Filters Frequency Divider; Color: White,Red,Yellow | Material: Plastic,Metal,Electric Parts; Dimension: 11.5 x 8.5 x 3.2cm/ 4.5 x 3.3 x 1.3 inches(L*W*H) | Package Content: 2 x Crossover Filters Frequency Divider; Rated Power: 180W | Crossover Points: 850/4000 Hz; Circuit Filter: Low W 12 db/oct High T 12 db/oct | Output Impedance: 4-8 ohm

This is a 2.1mm focal length camera lens. | It has F2.0 large aperture. | This CCTV camera is suitable for all IP cameras with M12*0.5mm mount. | It allows more of the scene to be included in the photograph and performs well during the day. | It is easy to install and remove without affecting the installation and use of other accessories.

Color: Black; Material: Plastic; Focal Length Description: 2.1 mm; Lens Type: Wide Angle；Outer diameter 14mm/0.55 inch; Thread Type：M12; Aperture D/f': F2.0; Package List: 1 x 2.1mm 5MP CCTV Camera Lens | CCTV camera is widely used in homes, factories, shops, bars, parking lots, warehouses, etc. Suitable for monitoring indoor and outdoor areas to avoid accidents. | Standard M12x0.5 screw connector, suitable for most types of surveillance cameras. | NOTE: Products with electrical plugs are designed for use in the US. Outlets and voltage differ and this product may require an adapter or converter for use in your destination. Please check compatibility before purchasing. | The camera glass lens adopts a multi-layer coating process, using industrial-grade optical glass. The multi-layer coating makes the image clear and lifelike, and the night vision is clear and visible. The wide angle allows more of the scene to be included in the photo and performs well in daylight. It can record and reflect the subject's movement speed and rhythm changes. Suitable for indoor and outdoor areas that require attention.

A passive radiator system uses the sound otherwise trapped in the enclosure to excite a resonance that makes it easier for the speaker system to create the deepest pitches | Bass radiator, also known as a "drone cone", for replacing the inverted tube or subwoofer with the radiator and the traditional back subwoofer. | Air turbulence noise is no longer an issue, when air rapidly escapes the pipe at high volumes.No more high frequencies reflected out the port. | Passive radiators operate in conjunction with the active driver at low frequencies, sharing the acoustic load and reduce the excursion of the driver. | Working similarly to a vent, the passive radiator will only add as much as they subtract.

This is a 6mm focal length camera lens. | It has F2.0 large aperture. | This CCTV camera is suitable for all IP cameras with M12*0.5mm mount. | It allows more of the scene to be included in the photograph and performs well during the day. | It is easy to install and remove without affecting the installation and use of other accessories.

This is a 2.8mm focal length camera lens. | Focal Length: 2.8mm; Mount: CS-Mount; 720p 5MP; Field of View: 110 degree; Format: 1/3; F1.2 | Imaging of fringe and centre is consistent. | It allows more of the scene to be included in the photograph and performs well during the day. | It is easy to install and remove without affecting the installation and use of other accessories.

OVERALL SIZE : 13 x 12 mm / 0.51 x 0.47 inches (D*H). | APPLICATION : Protect the BNC-B Female port from dust. | FEATURE : for BNC-B Female Port | MATERIAL : Silicone. | PACKAGE CONTENT : 20 x BNC-B Port Dust Covers.

Grit 60, 10-inch outside diameter,quality electroplated diamond coated flat lap disk wheel. | The flat laps wheels have a 1/2-inch arbor hole for Angle Grinder. | They are absolutely flat and parallel to meet the most exacting faceting requirements. | For grinding and polishing jewelry, glass, rock,stone, granite,etc. | Recommended for rough and fine grinding on faceting material plus general lapidary grinding when precision is required.

Frame Material: ABS Plastic; Mesh Material: Cold Rolled Steel | Outer Diameter: 185mm / 7.28 inch; Inner Diameter: 146mm / 5.75 inch | Screw Hole Diameter: 4mm / 0.16 inch; Diagonal Center Hole Distance: 167mm / 6.57 inch | Distribute screws, make you more convenient installation. | Great for speaker cabinet, home speaker or speaker.

Speaker Port Tube is used to improve the bass response of many types of speakers. There are plenty of types to help you with your vented box design, and carries tubes of every shape and size, including adjustable length ports and flared ports. | These port tubes are a reliable, convenient installation, while at the same time providing a finished, "pro" look to your bass reflex speaker building project. | Normal tubes suffer from nasty turbulence at the entrance and exit of the port, producing unwanted noise and poor sound quality.This port tubes can overcome the situations and you can experience good looks, low distortion, and superior overall sound quality. | Standard mount holes make this tube easier to install than others on the market. | Please check the mountingn size clearly before buying the item.

This is a 8mm focal length camera lens. | It has F2.0 large aperture. | This CCTV camera is suitable for all IP cameras with M12*0.5mm mount. | It allows more of the scene to be included in the photograph and performs well during the day. | It is easy to install and remove without affecting the installation and use of other accessories.

Feature: 2pcs 0.31-inch ID x 0.4-inch OD, 305mm/1Ft Length, Clear Rigid Tubing is sturdy and durable, it has good electrical insulation, good tensile and compressive strength. | Material: Clear Round Tube is made of polycarbonate with high impact-resistant, it is easy to be processed. You can use the hacksaw or pipe cutter to cut it down without cracking or damaging it in any way easily. | Advantage: Rigid Round Tubing has good size stability, high transparency, wear resistance, corrosion resistance, and is not scratched easily. | Operating Temperature: The stiff PC plastic tubing cannot be stored in water above 140 ℉ for a long time. | Application: Widely used in water pipes, DIY lightsaber, lamp and light, crafts, electronics, hardware, display racks and decoration ect.

Product Name : Active Electronic Alarm Buzzer;Model : HYD-2312 | Working Voltage : DC 6-15V;Body Size : 22 x 11mm / 0.87" x 0.4" (D*T) | Cable Length : 10cm / 3.9";External Material : Plastic | Color : Black;Weight : 8g | Package Content : 2 x Active Electronic Alarm Buzzer

20mmx40mm Speaker, rated power is 2W, impedance is 8 Ohm | High sensitivity, loud voice, good and clear sound quality | It is a speaker as a replacement for your sound system | Adequate volume, it will be your best choice if you have an good application. | Package includes a pair of speakers

PARAMETER - rated power: 2W; impedance: 8 Ohm; with 90mm / 3.54 inch wire and pin. | SIZE - 28 x 5.5 mm / 1.1 x 0.22 inch (Dia * T); Magnet Diameter : 16 mm / 0.63 inch. | FIT for - robot, advertising machine, game machine, integrated machine special speaker,phone, laptop, etc. | APPLICATION - suitable for all kinds of sound source fabrication, the sound is clear and melodious without distortion. | PACKAGE CONTENT - 1 x Stereo Speaker.

This is a 12mm focal length camera lens; It has F2.0 large aperture. | High definition image, good color reduction and small distortion. | This CCTV camera is suitable for all IP cameras with M12*0.5mm mount. | It allows more of the scene to be included in the photograph and performs well during the day. | It is easy to install and remove without affecting the installation and use of other accessories.

This is a 12mm focal length camera lens; It has F2.0 large aperture. | High definition image, good color reduction and small distortion. | This CCTV camera is suitable for all IP cameras with M12*0.5mm mount. | It allows more of the scene to be included in the photograph and performs well during the day. | It is easy to install and remove without affecting the installation and use of other accessories.

This is a 2.8mm focal length camera lens; It has F2.0 large aperture. | High definition image, good color reduction and small distortion. | This CCTV camera is suitable for all IP cameras with M12*0.5mm mount. | It allows more of the scene to be included in the photograph and performs well during the day. | It is easy to install and remove without affecting the installation and use of other accessories.

This is a 3.6mm focal length camera lens; It has F2.0 large aperture. | High definition image, good color reduction and small distortion. | This CCTV camera is suitable for all IP cameras with M12*0.5mm mount. | It allows more of the scene to be included in the photograph and performs well during the day. | It is easy to install and remove without affecting the installation and use of other accessories.

This is a 8mm focal length camera lens; It has F2.0 large aperture. | High definition image, good color reduction and small distortion. | This CCTV camera is suitable for all IP cameras with M12*0.5mm mount. | It allows more of the scene to be included in the photograph and performs well during the day. | It is easy to install and remove without affecting the installation and use of other accessories.

This is a 8mm focal length camera lens; It has F2.0 large aperture. | High definition image, good color reduction and small distortion. | This CCTV camera is suitable for all IP cameras with M12*0.5mm mount. | It allows more of the scene to be included in the photograph and performs well during the day. | It is easy to install and remove without affecting the installation and use of other accessories.

This is a 3.6mm focal length camera lens. | It has F2.0 large aperture. | This CCTV camera is suitable for all IP cameras with M12*0.5mm mount. | It allows more of the scene to be included in the photograph and performs well during the day. | It is easy to install and remove without affecting the installation and use of other accessories.

Product Name : CCTV Lens;Image Format : 1/3" | Mount : 12 * 0.5mm;Focus Length : 3.6mm | Aperture : F2.0;Angle of View : 92 Degree | Size : Size;14 x 14.7mm(D*H) : 14 x 14.7mm(D*H) | Weight : 4.7g;Package Content : 1 x 3.6mm CCTV Lens

Color: Black; Material: Plastic; Focal Length Description: 3.6 mm; Lens Type: Wide Angle；Outer diameter 14mm/0.55 inch; Thread Type：M12; Aperture D/f': F2.0; Package List: 1 x 3.6mm 1080p CCTV Camera Lens | CCTV camera is widely used in homes, factories, shops, bars, parking lots, warehouses, etc. Suitable for monitoring indoor and outdoor areas to avoid accidents. | Standard M12x0.5 screw connector, suitable for most types of surveillance cameras. | NOTE: Products with electrical plugs are designed for use in the US. Outlets and voltage differ and this product may require an adapter or converter for use in your destination. Please check compatibility before purchasing. | The camera glass lens adopts a multi-layer coating process, using industrial-grade optical glass. The multi-layer coating makes the image clear and lifelike, and the night vision is clear and visible. The wide angle allows more of the scene to be included in the photo and performs well in daylight. It can record and reflect the subject's movement speed and rhythm changes. Suitable for indoor and outdoor areas that require attention.

Color: Black; Material: Plastic; Focal Length Description: 3.6 mm; Lens Type: Wide Angle；Outer diameter 14mm/0.55 inch; Thread Type：M12; Aperture D/f': F2.0; Package List: 1 x 3.6mm 720p CCTV Camera Lens | CCTV camera is widely used in homes, factories, shops, bars, parking lots, warehouses, etc. Suitable for monitoring indoor and outdoor areas to avoid accidents. | Standard M12x0.5 screw connector, suitable for most types of surveillance cameras. | NOTE: Products with electrical plugs are designed for use in the US. Outlets and voltage differ and this product may require an adapter or converter for use in your destination. Please check compatibility before purchasing. | The camera glass lens adopts a multi-layer coating process, using industrial-grade optical glass. The multi-layer coating makes the image clear and lifelike, and the night vision is clear and visible. The wide angle allows more of the scene to be included in the photo and performs well in daylight. It can record and reflect the subject's movement speed and rhythm changes. Suitable for indoor and outdoor areas that require attention.

Product Name : Pinhole Fixed Iris Lens;Focal Length : 3.7mm | Horizonal Field : 89 Degree;Aperture(F) : 2.0 | Mount : 12.05;Format(Inch) : 1/3 | Thread Diameter : 11.8mm / 0.47";Length : 7.1mm / 0.28" | Weight : 2.2g;Package Content : 1 x Pinhole Fixed Iris Lens

4 inch outside diameter, 500 Grit , Quality electroplated diamond coated flat lap disk wheel. | The flat laps wheels have a 1/2-inch arbor hole for Angle Grinder. | They are absolutely flat and parallel to meet the most exacting faceting requirements. | For grinding and polishing jewelry, glass, rock,stone, granite,etc. | Recommended for rough and fine grinding on faceting material plus general lapidary grinding when precision is required.