Features:

This extremely portable, lightweight wireless audio transmitter & receiver is an ideal wireless audio solution for a wide range of situations and uses

Transmitter mode:wirelessly streams audio from your non-Bluetooth TV, home stereo system, or CD player to your Bluetooth headphones or speakers

Receiver mode: wirelessly streams audio from your Bluetooth-enabled phone, tablet, or computer to your wired stereo, speakers, or headphones

Operation:

Power on: press and hold the power on / off button until the LED lights up

Power off: press and hold the power on / off button until the LED goes out

Charging: use dc-5v charger and micro USB charging cable. The red light is on when charging. When the battery is fully charged, the red light goes out and the blue light comes on.

Switching mode:

1) Rx: receiving mode, indicator light: blue LED

2) TX: emission mode, indicator: Red LED

RX mode:

Pairing Name: kn321, find kn321 pairing in Bluetooth settings of mobile phone. During the pairing process, the blue light flashes twice a second, and after the pairing is successful, the blue light flashes once every three seconds.

How to use:

1) Insert one end of the audio cable into the audio input of the loudspeaker and the other end into the audio input of kn321

2) Make sure it is in Rx mode (blue light flashing). Find the pairing name in the Bluetooth settings of your phone: kn321. Click to pair.

TX mode:

TX mode will automatically search for other Bluetooth receiving devices (such as Bluetooth speaker, Bluetooth receiver, etc.). During pairing, the red light flashes twice a second. After pairing, the red light flashes once every three seconds, which is very successful.

How to use:

1) Insert one end of the audio cable into the audio output terminal of the device, and the other end into the audio input terminal of kn321.

2) Make sure it is in TX mode