Transmitter Receiver TV Computer Speaker Car Adapter 35mm Bluetooth 50 2in1 for Home Sound SystemTVPCTablet Headphone General Black Large

Color: blackSwitch
mode: (1)
RX: Receive mode, indicator: blue LED (2)
TX: Transmit mode, indicator
light: red
LED RX mode: Pairing
name: KN321, find KN321 in the Bluetooth settings of the phone to pair. The blue light flashes twice a second during the pairing process, and the blue light flashes once every three seconds after the pairing is successful.
how to use: (1) Plug one end of the cable into the input of the speaker and the other end into the of the KN321. (2) confirm that it is in RX mode (blue light flash). Find the pairing name in the
Bluetooth settings of the phone: KN321 click to pair.
TX mode: TX mode will automatically search for other Bluetooth receiving devices (such as Bluetooth headset, Bluetooth speaker, Bluetooth receiver, etc. ), The red light flashes twice a second during the pairing process, and the red light flashes once every three seconds after the pairing is successful.
How to use: (1) Plug one end of the cable into the output of the devices and the other end into the of the KN321. (2) Confirm that it is in TX mode (red light flash). The KN321 will automatically search for Bluetooth headset or Bluetooth speaker pairing.