Great Flying Companion:
Connect the Bluetooth 5.4 transmitter in TX mode and transmit audio signals in an airplane or with TVs that do not support Bluetooth to Bluetooth wireless devices. With a transmission distance of up to 10 meters, transmit hassle-free with no need for knotted headphone cables.

 Bluetooth 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.

 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 14 hours in RX mode and 11 hours in TX mode. The AUX adapter can be used while charging, which is very convenient.

 Easy Control:
One button control, simply Play,Pause music, Answer,End,Reject calls without using the smartphones.

 Mini and Portable:
Built with a mini design (5.12 *1.12 *0.55 inch) that is very tiny slip easily into any pocket for easy storage and transport.

 Package:
1*Bluetooth 5.4 Audio Adapter
1*Charging cable
1* User Manual