2 in 1 Bluetooth 5.0 Receiver Transmitter 3.5mm Stereo Audio Bluetooth Wireless Adapter for Headphone TV Car Speaker Z4

Specifications:

Model: KN321/KN319

Technologies: KN321:BT5.0,KN319:BT4.2, A2DP, AVRCP (receiver mode only)

Operation Range: Up to 10m / 33ft (without any blocking objects)

Pairing name:KN321/KN319

Charging Time: 2hours

Working Time: RX:6hours;TX:5hours

Battery Type: Li-Polymer(200mAh)

Dimensions: 44×44×12mm 

Features:

1.This extremely portable, lightweight wireless audio transmitter & receiver is an ideal wireless audio solution for a wide range of situations and uses

2.Transmitter mode:wirelessly streams audio from your non-Bluetooth TV, home stereo system, or CD player to your Bluetooth headphones or speakers

3.Receiver mode: wirelessly streams audio from your Bluetooth-enabled phone, tablet, or computer to your wired stereo, speakers, or headphones

4.Switch between transmitter and receiver modes with the simple flick of a switch. Effortlessly connect using advanced Bluetooth technology and 3.5mm audio cable (included).

5.Super-Portable Audio-Streaming Power

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: