Please read the follow General Q&A carefully before placing an order or leave us a negative review.

If the device can not work normal, please contact with us first,Instead of giving us a Negative review, We will try our best to help you solve all problems,Please trust us,Thanks in advance.

Q1: Why i can not find the KN320 in my computer?

A: When you plug the KN320 to your computer usb port, The computer’s usb port just be used as a power supply for the KN320. So the computer don’t needs to see it, you just need to connect it with PC by 3.5mm AUX cable so it will work for PC. When using for PC, you must use TX mode(Red light blinking). Then pair with your Bluetooth earphone/speaker.

Q2: Why i can not find the KN320 in my smart phone bluetooth ?

A: When you use the KN320 to pair with your phone, you need to confirm the KN320 was in bluetooth receiver mode (LED light should be BLUE blinking).If the light was red blinking,Its bluetooth transmitter mode ,not receiver mode ,so you can not find it in your phone.

Q3: Why i can not pair with my bluetooth earphone ?

A: When you use the KN320 to pair with your bluetooth earphone, you need to confirm the KN320 was in the bluetooth transmitter mode (LED light should be RED blinking). Aux should be connected with PC and KN320. If the light was blue blinking,its bluetooth receiver mode ,not transmitter , so you can not pair with your bluetooth earphone.

Q4: How to change between bluetooth transmitter(RED light) and receiver mode(BLUE light) .

A: Red light was blueooth transmitter mode; Blue light was bluetooth receiver mode;The way to change the light was re-plug the USB device to your usb power supply.

Q5: Why i connect successful,but its don’t have sound?

A: In transmitter mode(Red light): You need to use the 3.5mm audio cable to connect your TV/PC/Tablet with our KN320. Noted, The 3.5mm cable should be pluged into your TV/PC/Tablet’s 3.5mm audio output. In receiver mode(blue light): You need to use the 3.5mm audio cable to connect your Amplifier/wired speaker/car audio system with our KN320. Noted, The 3.5mm cable should be pluged into your Amplifier/wired speaker/car audio system 3.5mm audio input.

Q6: Can i use for my wireless keyboard/mouse ?

A: Not support !! Our device only can be used as bluetooth receiver or bluetooth transmitter. Can not be used as a WiFi/Wireless adapter to connect with WiFi network and dose not work with keyboard / mouse.

Q7: Can i use it to connect between phone and Amplifier/wired speaker/car audio system etc?

A: Yes ,but you need to confirm your Amplifier/wired speaker/car audio system have 3.5mm audio output port.

Q8: Can i use it to connect between bluetooth earphone/speaker and TV/PC/Tablet/CD Player/MP3/MP4 ?

A: Yes. But you need to use the 3.5mm cable plug into your TV/PC/Tablet/CD Player/MP3/MP4’s 3.5mm AUX audio port. Then connect with our device.

Q9: Why when i connect with the KN320, Its have noise or the sound weak ?

A: Its because you used the USB Power supply can not suitable for KN320, You need to change another USB power supply and confirm the USB power supply only support DC 5V output, Can not support 9V/12V or various output.

Q10: What’s the different of color 1 and color 2?

A: Its the same function, The difference is that the appearance pattern of the product,So just select the appearance pattern you like.

Product Features: