▶ Turn your No-Bluetooth common sound-box into Bluetooth sound-box | ▶ Turn your iPhone,iPod,iPad speaker dock with Apple 30-pin connector into a wireless Bluetooth music system and freely enjoy your favorite songs(IF IT ASKS FOR A PASSWORD ENTER '0000') | ▶ Support A2DPV1.2,compatible with all A2DP stereo Bluetooth enabled devices.Also can pair to your Bluetooth transmitter adapter,no any other messy lines everywhere | ▶ Plug and play;Simple operation;Freely and wireless enjoy music;Working distance is no less than 10 meters(30 feet);No battery in the product,power supply by the 30pin dock speaker | ▶ Note:not every 30-pin dock speaker can work with,check the Compatible Speaker list in Product Description in case you can use it.For Bose SoundDock, Only compatible with newer generation sounddock series I (that will charge iPhone), series II,10 & Portable. NOT compatible with older generation Sounddock I that cannot provide charge to iPhone iPod. So pls check your Sounddock before order! Make sure your speaker Can charge the receiver by 30-pin dock!

Eliminating Buzzing Noise : Eliminating the buzzing noise, caused by ground loops which happens when the audio source and the speaker use the same power source in some car speakers / home stereo systems when using the Bluetooth receiver. | Working Principle: Filters out noise instantly for clear, uninterrupted, uncompromised sound by eliminating the current noise in some car speakers / home stereo systems | Plug and Play: Nifty little gadget that just plugs in; no other setup needed. | Wide Compatibility: Works with any audio device that has 3.5mm audio jacks, for your Car Audio System/Home Stereo. | Note: The Ground Loop Isolator connect to the AUX Jack in car to eliminate noise.You will enjoy good quality sound when use it with Ground Loop Noise isolator.

[Bluetooth Car Adapter]-This Bluetooth car kit is a great option for non-Bluetooth car stereo, it will help you use your car speakers for audio from smartphone for music, navigation and calls, which is a good choice for drivers who want hands-free calls and high quality music. | [Dual USB Car Charge]-Intelligently identifies your device for safe charging of Dual devices at full speed simultaneously (Output: 5V/2.4A/12watt).【Please note: this is a dual USB-A Port car charger, but not USB-C Lighter Charger 】 | [Noise Filter]-It comes with a ground loop isolator for clean and clear music. The noise filter can eliminate the buzzing noise caused by ground loop. It happens when the audio source and the speaker use the same power source in some car speakers or home stereo systems when using Bluetooth receiver. | [Auto-Connect]-This Bluetooth audio receiver will automatically connect to your phone when you start the car, no need to manually connect Bluetooth each time. Please NOTE: Make sure the Bluetooth of your phone is turned on before starting the car. | [Versatile Compatibility]-Compatible with most cars with a 3.5mm AUX input, the Bluetooth adapter integrates seamlessly into your vehicle for convenience. Moreover, the included dual-port USB car charger keeps your devices powered up at all times. | [What’s in the box]-Bluetooth aux adapter x1, Ground loop noise isolator x1, Dual USB cigarette lighter power adapter x1.

Transmitter and Receiver: In TX mode, the Bluetooth transmitter can be plugged into non-Bluetooth devices such as TV, PC, MP3 Players via Optical/AUX/RCA cable, stream audio to Bluetooth headphones/speakers/soundbars; In RX mode, connect the Bluetooth receiver with wired speaker/home stereo system to receive the audio from smartphones or tablet | HD Sound Quality: The Bluetooth transmitter receiver is equipped with the latest Bluetooth 5.0 technology and well-design software, supports aptX & aptX Low Latency in both TX and RX mode, delivering high quality sound in perfect audio-visual synchronization | Dual Connection: This ZIOCOM Bluetooth transmitter and receiver supports dual connection in both TX and RX mode; Connect to two Bluetooth headphones to your TV in transmitter mode or connect to two smartphones to your home stereo system to stream music in receiver mode | Easy to Use: Toggle the switch to choose the right mode to use, plug in power cable, plug in audio cable, pair to it and play music. Please note, plug to the right aux or optical dock or there maybe no sound.( TX is for TV, RX is for speaker) . Bypass Mode is also supported, it only does direct source to source ( 3.5mm to 3.5mm, optical to optical ) | Wide Compatibility: Supports Optical, AUX, RCA Audio outputs/inputs, suitable for most devices. In transmitter mode, Bluetooth transmitter for tv, which is an excellent solution for watching TV with Bluetooth headphones. In receiver mode, Bluetooth receiver for home stereo, which can upgrade old stereo | Know More: We have a professional after-sales support team, please feel free to contact our customer support if you have any problems with our products.

2-in-1 Bluetooth Audio Adapter: In TX mode, the Bluetooth transmitter can be plugged into non-Bluetooth devices such as TV via AUX/RCA jack and then pair it with your wireless headphones. Start enjoying music or watching videos without disturbing others. In RX mode, connect it to the audio port of your wired speakers via 3.5mm/RCA cable, and pair it with your smartphone. In this way, you could enjoy high-quality music wirelessly | Perfect Synchronization: Equipped with the latest mature Bluetooth 5.0 chipset and well-designed software, this technology not only helps to upgrade old audio devices to Bluetooth without replacement, but also provides you with the ability of a CD-like listening feast | Dual-link: ZIOCOM Bluetooth Transmitter receiver can be paired with two headphones in TX mode, which can satisfy the idea of watching movies with your lover.You can also pair two mobile phones in RX mode to switch songs from different mobile phones at any time | Long Play Time: Built-in 250mAh rechargeable battery,10H long endurance.And the Bluetooth audio transmitter receiver can continuously working while powering，enjoy your favorite wireless life as long as you can | Compatibility Notes: The Bluetooth audio adapter can be connected via 3.5mm AUX cable and RCA cable. If your device is a fiber optic interface, please buy our other products with fiber optic interface | PLEASE NOTE: 1. There is a built-in battery, you'd better turn it off after using it and you need to turn it on when use it next time. 2. You can not answer calls through it because of no built-in microphone