2 In1 Bluetooth 5.0 Audio Receiver And Transmitter 3.5mm AUX

Specifications
Model: KN321
Technologies: :BT5.0
Operation Range: Up to 10m / 33ft (without any blocking objects)
Pairing name:KN321
Charging Time: 2 hours

1 * BT5.0 Audio transmitter / Receiver adapter 1 * 3.5 Male to male audio cable 1 "Manual

 1.This portable. Ilightweight wireless audio transmitter and receiver is the ideal wireless audio solution for every situation and application.

 2. Transmitter mode: wirelessly  transmits audio from non-Bluetooth TVs, home stereo systems or CD players to Bluetooth headsets or speakers. 

3. Receiver mode: wirelesshy transmits audio from Bluetooth-enabled mobile phones, tablets or computers to cable stereo. speakers or headphones

 4. Mode switching A  ) First plug the product into the USB port to power up. 5) When powered on, the default mode of the machine is the transmitter mode. C) Press and hold the side button for more than 3 seconds to switch to receiver mode. Press  and hold to switch back to the transmitter mode. 

5. Paining and using metheds A) Receive mode usage methods: Blue LED dashes to indicate that it has switched to receive mode. The USB of this product is used for power supply and can be plugged  into any USB inte  rface with 5V output.  For example, a mobile phone charger.  Find the pairing name of the BT600 in the Bluetooth settings of your phone.  The paired successful Bluetooth hght will be on.  Play audio files in your phone, use the 3.5 headphone cable to connect to speakers, car audio and other Bluetooth-free devices.  You ean also plug in the 3.5 headphone port with a wired headset to listen to music.  B) Use method of emission mode Red LEDflashes to indicate that it has switched to transmitter mode The USB of this product is used for power supply and can be plugged into any USB interface with 5V output.  In the launch mode, the product will automatically search for other Bluetooth devices that have been turred on (such as Bluetooth headset, Bluetooth speaker, Bluetooth receiver, etc.), and the pairing success will be red.  Use the 3.5 headphone cable to connect the product to a TV, computer, or other device that has an output.  At chis time, the sound of the TV broadcast is wirelessly transmitted to the Bluetooth speaker, Bluetooth beadset, etc. through the product.  6. The unit is smiall and exquisite, but has powerful transmitting and receiving funetions, which is convenient to carry.  7. Wide compatibility This product is widely used in your computer / pen computer / home stereo system / headset / smart phone / MP3 player / CDnlst 44mm (1.73") across and weighs only 18g (0.63oz), but has got powerful wireless audio streaming capabilities. Slip this transmitter & receiver into your backpack or laptop bag and take it on-the-go without the slightest effort.

6.Broad Compatibility: With the included 3.5mm cable and 3.5mm to 2RCA cable, this Receiver Transmitter adapter can widely be used on your computer, laptop, home stereo system, headphone, smartphone, Mp3 player, CD player, etc.

Power on: Press and hold the power on/off button until the LED lights up
Shutdown: Press and hold the power on/off button until the LED is off 

Charging: Use the DC-5V charger and micro usb charging cable. The red light is on during charging. When the battery is fully charged, the blue light is on.

Switch mode:
1)RX: Receive mode, indicator: blue LED
2)TX: Transmit mode, indicator light: red LED

RX mode:
Pairing name: KN321/KN319, find KN321/KN319 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 audio cable into the audio input of the speaker and the other end into the audio 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/KN319 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 audio cable into the audio output of the devices and the other end into the audio of the KN321/KN319.
2)Confirm that it is in TX mode (red light flash). The KN321 will automatically search for Bluetooth headset or Bluetooth speaker pairing.