SHANFEILU USB BT 5.0 Adapter 4-in-1 Wireless Stereo Audio Transmitter Receiver Adapter with 3.5mm AUX for Car Aux PC TV Speaker Home Audio System

NOTE:The button labeled as "hands free button" . It is also called the "function button" in the instructions. So if your device doesn't pair, press this button. Product model: BT audio receiving and transmitting adapter. Product color: black. Product size: 45*20*11mm. Input voltage:USB 5V power supply. The product is turned on by default in the transmitter mode, the red indicator light flashes quickly, long press the function button to switch to the receiving mode, the blue indicator light flashes quickly, the computer is connected to the Bluetooth speaker/headphone, The barrier-free transmission range can reach 15 meters. Applicable type: computer, TV,projector (transmitting mode)/speaker, earphone, car device,call (receiving mode). Product packaging: 1pcs/bag (host,3.5mm audio cable, English manual).