1. Technologies: BT5.0, A2DP, AVRCP (receiver mode only).
2. Operating range: up to 10m / 33ft (without blocking objects).
3. Pairing name (receiver mode): KN330
4. TX: transmitter mode, red LED light on
5. RX: receiver mode, blue LED light on
6. Insert the usb power, the red light turns on in streaming mode, the red light flashes when pairing, and the red light always turns on after the pairing is successful.
7. Insert usb to power on, the receiving mode is blue light, the blue light flashes when pairing, the blue light always turns on after the pairing is successful.