Enjoy Wireless Audio - 2 in 1 BT 5.4 wireless receiver & transmitter.<br> Receive/Transmit, One Click Switching. Kind reminder: When using the receive and transmit functions, you can only choose between two options.<br> Receiving Mode - Connect to speakers, receive bluetooth signals, and wirelessly. When the receiving mode, the indicator light is blue.<br> Transmit Mode - Connect the audio output port of the device and wirelessly through paired wireless headphones and Bluetooth speakers.<br> Long battery life with built-in battery - Built in 200mAh rechargeable lithium battery, Type-c interface for charging, real-time battery display,and durability.<br> Receiving mode:<br> New Experience of Wired to Wireless Music - Connect to wired speakers, break space limitations, and enjoy wireless fun.<br> Handsfree Call, Freeing Hands - Built in microphone for clear communication, keep hands off the steering wheel for driving.<br> Make the car equipped with Bluetooth,wireless connection, and enjoy mobile music, voice calls, navigation playback, making driving .<br> Transmit Mode:<br> Connect game consoles such as for Switch/for to wireless Bluetooth, wired headphones, and enjoy wireless fun.<br> Wireless connection makes flight easier, No wired earphone restrictions, making travel more convenient.<br> Connect wireless headphones for and easier running.<br> Colour:Black<br> Material:Plastic<br> Package Contents:<br> 1 * Bluetooth Audio Receiver Transmitter<br> 1 * USB Cable<br> Only the above package content, other products are not included.<br> Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.