Product Quantity: 1pcs Color: black 1.APPLICABLE TRANSMISSION EQUIPMENTWirelessly transmit audio from Bluetooth enabled phone, tablet PC or computer to wired stereo, speaker or headset. And the transmission process is a lossless transmission. 2.SPECIALLY DESIGNEDPortable wireless audio transmitters and receivers are perfect wireless audio solutions for various situations and applications. Moreover, the performance is very stable and can be used for a long time. 3.BLUETOOTH TECHNOLOGY Durable bluetooth receiver using advanced Bluetooth technology and 3.5mm audio cable (attached) to easily connect. Switching between transmitter and receiver modes at click of button. 4.BLUETOOTH TRANSMITTER RECEIVERWirelessly transfer audio from nonBluetooth TV, home stereo system or compact disc player to Bluetooth headset or speaker. The devise is very suitable for use. 5.EASY INSTALLATIONThe installation method of the Bluetooth receiver is very simple, you only need to install it according to the correct installation method, the installation method is also very suitable for beginners.