GUYUTING Effortless Audio Freedom KN321 Bluetooth Transmitter/Receiver for TVs, Speakers & Headphones

Features:
The KN321 is just 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.
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.


Specifications:
Technologies: BT5.0,A2DP, AVRCP (receiver mode only)
Operation Range: Up to 10m / 33ft (without any blocking objects)
Pairing name:KN321
Charging Time: 2 hours
Working Time: RX: 6 hours ; TX: 5 hours
Battery Type: Li-Polymer (200mAh)
Dimensions: 44 × 44 × 12mm

Package includes:
1* Bluetooth 5.0 Audio Transmitter/Receiver Adapter
1* Micro USB Power Cable
1* 3.5mm AUX Audio Cable
1* User Manual