Bluetooth 5.3 Transmitter and Receiver: Switch to the receiver (RX) mode, the home stereo system, car audio system, wired headphones, speakers, and power amplifiers can receive audio (play music) from phones, tablets. Switch to transmitter (TX) mode, and the sound of TV, PC, CD player, MP3, gaming devices and other audio devices can be transmitted to Bluetooth earbuds headset and speaker. It can meet your various needs and enjoy your wireless music anytime, anywhere.

Easy to use: This Bluetooth receiver can easily convert your wired headphones, speakers, home or auto audio system and amplifiers into Bluetooth-enabled devices. Simply plug the adapter into the 3.5mm auxiliary jack, and you can easily connect these devices to phone and tablet. Compatible with iPhone, iPad, smartphones, tablets and other Bluetooth-enabled devices. Works with devices of 3.5mm interface, such as TV, car/ home stereo system, headphone, PC, speaker, projector, MP3, MP4 etc.

Hands-Free Calling & Clear Sound: This Bluetooth adapter can be connected to your phone for hands-free calls, and the built-in microphone provides you with clear sound. One click answer, hang up, reject, and redial the last number. You can easily switch between calling and music devices while driving, ensuring driving safety. Note: Making calls and hands-free calls are only supported in RX mode.

Compact Portable & Long Battery Life: The Bluetooth AUX adapter takes up little space, so you can take it anywhere. Built-in rechargeable lithium battery, USB C fast charging, fully charged within 1-2 hours. It can work for about 8 hours in RX mode and 4 hours in TX mode. The AUX adapter can be used while charging, which is very convenient.

The Bluetooth adapter supports transmitter and receiver mode.

In transmitter (TX) mode, turn non-Bluetooth devices such as TV, PC, CD player, MP3, MP4, gym/ flight equipment and other audio devices into Bluetooth transmitter, and transmit sound to Bluetooth headphones and speakers.

Pairing Method in TX Mode

1. Plug one end of the 3.5mm connector into the adapter and the other end into the 3.5mm audio output port of the TV or computer.

2. Press the multi-function button for 3 seconds to open the adapter, and switch to TX mode, the red light will light up.

3. Turn on the Bluetooth headset or speaker, automatically search for and pair with the adapter, after successful pairing, the red light will light up

In receiver (RX) mode, your wired headphones, speakers, home/ car audio systems and amplifiers are converted into Bluetooth devices, which can be connected to smartphone or tablet.

Pairing Method in RX Mode

1. Plug the adapter into the 3.5mm AUX jack of the car stereo, wired headphone or speaker.

2. Press the multi-function button for 3 seconds to open the adapter, and switch to RX mode, the blue light will light up.

3. Turn on Bluetooth on your phone and search for "T67".

4. Click "T67" to pair, after successful pairing, the blue light will light up.