Product keywords
Please enter the email address account
KN321 Bluetooth 5.0 Audio Receiver And Transmitter USB 3.5mm Jack For Car TV And PC Speakers
Share to:

KN321 Bluetooth 5.0 Audio Receiver And Transmitter USB 3.5mm Jack For Car TV And PC Speakers

- 2PCS

17.68 $24.99 29% OFF
Save an extra for using the App

Scan the QR code to buy:

  • 1.Download our FREE app on Google play or App Store.
  • 2.Launch the app and scan the QR code to buy directly.

Follow the below steps:

  • 1.Sign in to
  • 2.Add product(s) marked with to your Cart.
  • 3.Open our app, and go to your Cart.
  • 4.Pay for your order for an immediate discount!
    COD This product supports COD on delivery. Suggestions: Do not place orders with non-COD products, otherwise you will not be able to choose COD payment method.
    Ship between: Mar 09 - Mar 13, Estimated Shipping Time: business days Order Processing Time may require a few days. Once dispatched from warehouse, Shipping (or Delivery) Time depends on the Shipping Method.
  • +
  • interest-free You can enjoy a maximum of 0 interest-free installments, and may not enjoy this offer when placing orders with other products
Tax Info Price Protection Price Disclaimer Repair Warranty Report Item
Recommended for You


Main Features

Technology: BT5.0, A2DP, AVRCP (receiver mode only)
Working range: up to 10m / 33ft (without any obstacles)
Pairing name: KN321
Charging time: 2 hours
Working time: RX: 6 hours; TX: 5 hours
Battery type: lithium polymer (200mAh)
Size: 44×44×12mm
Weight: 18 grams
1. This extremely portable and portable wireless audio transmitter and receiver is an ideal wireless audio solution suitable for various situations and uses.
2. Transmitter mode: wirelessly transmit audio from a non-Bluetooth TV, home stereo or CD player to a Bluetooth headset or speaker
3. Receiver mode-wirelessly transmit audio from a Bluetooth-enabled mobile phone, tablet or computer to a wired stereo, speaker or headset
4. Tap the switch to switch between transmitter and receiver modes. Easily connect advanced Bluetooth technology and 3.5 mm audio cable (included).
5. Super portable audio transmission power
The KN321 is only 44 mm (1.73 inches) wide and weighs only 18 grams (0.63 ounces), but it has powerful wireless audio transmission capabilities. The transmitter and receiver can be slid into a backpack or laptop bag without carrying the slightest effort.
Power: Press and hold the on/off button until the LED lights up
Shutdown: Press and hold the on/off button until the LED goes out.
Charging: Use 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.
Switching method:
1) RX: receiving mode, indicator light: blue LED
2) TX: transmit mode, indicator light: red LED
Receiving mode:
Pairing name: KN321 / KN319, find KN321 / KN319 in the Bluetooth settings of the mobile phone for pairing. During the pairing process, the blue light flashes twice per second. After the pairing is successful, the blue light flashes once every three seconds.
how to use:
1) Plug one end of the audio cable into the audio input of the speaker, and plug the other end into the KN321 audio
2) Confirm that it is in RX mode (blue light flashes). Find the pairing name in the Bluetooth settings of the phone: KN321 / KN319 and click to pair.
Sending mode:
TX mode automatically searches for other Bluetooth receiving devices (such as Bluetooth headsets, Bluetooth speakers, Bluetooth receivers, etc.). During the pairing process, the red light flashes twice per second, and after that, the red light flashes once every three seconds. The pairing is successful.
how to use:
1) Connect one end of the audio cable to the audio output of the device, and the other end to the KN321/KN319 audio.
2) Confirm that it is in TX mode (red flash). KN321 automatically searches for Bluetooth headset or Bluetooth speaker pairing.
The package includes:
1 * Bluetooth 5.0 audio transmitter/receiver adapter
1 * Micro USB power cord
1 * RCA cable (PS: If "With RCA Cable" has not been selected, RCA cable is not included)
1 * 3.5mm AUX audio cable.
1 *User Manual


View More

Suggested Products

Customer Reviews

  • 0
  • 0
  • 0
  • 0
  • 0
See all 0 reviews Write a Review

Get G Points! Be the FIRST to Write a Review!

Sponsored Products Related to This Item
Your Recently Viewed Items

See personalized recommendations

New customer? Start here
Pre-sale Service