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<ul><li>Adeeing:Brand NameMainland China:OriginNONE:CertificationFM Transmitters:Item Type</li><li>Better Hands-Free Calls: Bluetooth provides a stable connection, and the echo cancellation function reduces background noise for clearer calls.</li><li>Compatible with most smartphone Bluetooth devices. Lighter interface connection is widely used in mainstream 12-24V vehicle market, such as cars, SUVs, trucks, etc.</li></ul>

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Description:Name: 2 in 1 Car &nbsp;AdapterModel: KN321Technologies: BT5.0, A2DP, AVRCP (receiver mode only)Operation Range: Up to 10m / 33ft (without any blocking objects)Charging Time: 2 hoursContinuous Use Time: 4 hours (Receiver Mode) / 3 hours (Transmitter Mode)Battery Type: Li-Polymer (200mAh)Dimensions: 44 × 44 × 12mmWeight: 18gBag: 62gColor box: 72gColor box size: 9.3 * 10 * 2.2cmFeatures:This extremely portable, lightweight wirele audio transmitter & receiver is an ideal wirele audio solution for a wide range of situations and usesTransmitter mode:wirelely streams audio from your non-Bluetooth TV, home stereo system, or CD player to your Bluetooth headphones or speakersReceiver mode: wirelely streams audio from your Bluetooth-enabled phone, tablet, or computer to your wired stereo, speakers, or headphonesOperation:Power on: pre and hold the power on / off button until the LED lights upPower off: pre and hold the power on / off button until the LED goes outCharging: 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 LED2) TX: emiion mode, indicator: Red LEDRX mode:Pairing Name: kn321, find kn321 pairing in Bluetooth settings of mobile phone. During the pairing proce, the blue light flashes twice a second, and after the pairing is succeful, 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 kn3212) 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 succeful.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 (red light flashing). Kn321 will automatically search for Bluetooth headset or Bluetooth speaker pairing.Packing list:1*Bluetooth Audio Transmitter/Receiver Adapter1*Micro USB Power Cable1*RCA Cable1*3.5mm Aux Cable1*User ManualNote：Due to the difference between different monitors, the picture may not reflect the actual color of the item.Please allow 0-1cm error due to manual measurement. Please make sure you do not mind before you bid.

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Universal Product Code (UPC check)

Kn321 2in1 Wireless Bluetooth5.0 Transmitter Audio Receiver Adapter For TV Computer Car Speaker Headset Adapter AUX RCA 3.5MM