Features：
1. Wide range of applications: The USB Bt 5.0 adapter can be used with almost any device that has an audio input/output (3.5mm auxiliary audio jack). When used with wireless headphones or wireless speakers, you can easily enjoy music and TV shows without disturbing others and ensuring privacy. (USB 5V power supply, no need to worry about running out of power when listening to music)
2. Bt transmitter receiver: ① Transmitter mode - transmits audio from non-Bt audio sources (TV, computer, CD/DVD player, etc.) to Bt headphones/speakers via 3.5mm audio cable. ② Receiver mode - transmits audio from a Bt audio source (smartphone, tablet, Bt TV/PC) to a non-wireless headset/speaker/car/home audio system via a 3.5mm audio cable. (Only audio can be transferred, not video or files)
3. One-button mode switch: Quickly switch between transmitter/receiver modes by simply pressing a button. When the Bt adapter is powered on, the red light is in TX-transmitter mode and the blue light is in RX-receiver mode.
4. USB audio transmission-transmitter mode: ① audio transmission via USB port (wireless transmission), audio transmission via AUX port 3.5mm audio cable ② receiver mode, audio transmission via AUX port 3.5mm audio cable to speaker.
5. Push button convenience: answer/hang up calls in receiver mode, when you have an incoming call, press the button to answer the call hands-free
Specifications：
Product colour: Black
Product size: 12*8*2cm/4.7*3.1*0.7inch
Weight: 20g/0.7oz
Input voltage: USB 5V power supply
The product is powered on in transmit mode by default.
Red indicator light flashing fast, long press function key to switch to receive mode.
Blue indicator light flashing, computer connected to the Bt speaker/headset.
Unobstructed transmission distance up to 15m/49.2ft
Product list：
1*wireless Receiver