1.Bluetooth 5.0 version,low latency audio receiver & transmitter,equipped with the smart chip to the stronger and more stable transmission 2.Bluetooth Receiver mode,make the wired devices become to the wireless. 3.Bluetooth Transmitter mode,work for the TV/computer 4.40M long distance transmission 5.Support dual audio port to connect,Come With both 3.5mm and 2RCA audio port, Suitable for more devices (3.5mm cable and 2RCA cable included) : plastic colour: black Package Contents: 1 x receiver 1 x audio cable 1 x charging cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.