Support Bluetooth reception (RX) and Bluetooth transmission (TX), two functions in one; Can read TF card / U disk, compatible with mp3 / flac / wav / wam / ape format songs; Exclusive mobile phone APP control, song / volume adjustment / sound effect adjustment / playback source switching; Support infrared remote control switch on / off / mute / play / pause / and song / volume up / down / sound source switching Dual AUX + RAC 3.5MM interface output, RX mode can connect 2 speakers and other equipment at the same time Specification: Material: ABS Color: black Plug: EU Size: 7.5x5.5x2.5cm/2.9x2.2x1 inches Input: 220V. Output: DC 5V 2.1A. Bluetooth version: Bluetooth 5.0 Bluetooth range: about 10 meters. Package Includes: 1*Bluetooth adapter 1*Audio cable 1*Remote control 1*User manual Note: 1.Please allow 1~3 cm error due to manual measurement, thanks. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Please understand, thank you