Features 1、2 In 1 Design: The Bluetooth transceiver combines receiving and transmitting functions in one device, using the latest Bluetooth version 5.3 to provide a more stable and faster connection. 2、Sound Transmitting: Switch on the TX side, you can transmit the sound from TV to Bluetooth headset; you can also send the sound from the player to Bluetooth speaker, enjoy the music. 3、Sound Receiving: Switch on the RX side, you can send the sound from your cell phone or tablet PC to the sound device to share with your friends. 4、Two In One Button: Minimalist design Bluetooth 5.3 transceiver, volume up down and song switch function two in one, double click the volume button to quickly realize the song switch. 5、Support Memory Card: The Bluetooth adapter supports up to 16GB Memory Card, you can play the music stored in the Memory Card and use it as an MP3 player to enjoy your favorite music at any time. Specification Item Type:BT Transceiver Material: ABS, Aluminum Alloy BT Version: 5.3 BT Protocol: A2DP, AVRCP Transmission Distance: Greater Than 10m/32.8ft Storage: Supports Maximum 16GB Memory Card (Not Included) Input Output: 3.5mm Stereo Compatibility: Universal for Android system, for iOS system, or sound devices with sound input interface Battery Type: Built in 250mAh Lithium Battery Package List 1 x BT Transceiver 1 x Data Cable 1 x Sound Cable 1 x User Manual