1.This extremely portable, wireless audio transmitter & receiver is an Perfect wireless audio solution for a wide range of situations and uses 2.Transmitter mode: wirelessly streams audio from your non-Bluetooth TV, home stereo system, or CD player to your Bluetooth headphones or speakers 3.Receiver mode: wirelessly streams audio from your Bluetooth-enabled phone, tablet, or computer to your wired stereo, speakers, or headphones 4.Switch between transmitter and receiver modes with the simple flick of a switch. Effortlessly connect using advanced Bluetooth technology and 3.5mm audio cable (included). 5.Broad Compatibility: With the included 3.5mm cable this Receiver Transmitter adapter can widely be used on your car,computer, laptop, home stereo system, headphone, smartphone, Mp3 player, CD player, etc. 6.Operation Range: Up to 15m (without any blocking objects) Colour: Black material: plastic Package Contents: 2 x Bluetooth 5.0 Audio Transmitter/Receiver Adapter 2 x 3.5mm Aux Cable 2 x User Manual 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 picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.