Product information:

Model: kn321
Technology: bt5.0, A2DP, AVRCP (receiver mode only)
Operating range: up to 10m / 33ft (without any obstruction)
Pairing Name: kn321
Charging time: 2 hours
Battery type: lithium polymer (200MAH)
Bare metal: size: 44 × 44 × 12mm
Package content:
1 x Bluetooth 5.0 audio transmitter / receiver adapter
1 x micro USB power cord
1 x RCA cable
1 x 3.5mm auxiliary cable
1 x user manual
Characteristic:
1. This portable and portable wireless audio transmitter and receiver is an ideal wireless audio solution for various situations and applications
2. Transmitter mode: wireless transmission of audio from non Bluetooth TV, home stereo system or CD player to Bluetooth headset or speaker
3. Receiver mode: wireless transmission of Bluetooth supported mobile phone, tablet or computer audio to wired stereo, speaker or headset
4. Just press the switch to switch between transmitter and receiver modes. Connect easily with Advanced Bluetooth technology and 3.5mm audio cable (included).
5. Super portable audio stream power supply
Kn321 is only 44 mM (1.73 inches) and weighs only 18 g (0.63 inches),but it has powerful wireless audio streaming function. Put the transmitter and receiver in your backpack or laptop bag, and you can carry it with you without any effort.
6. Wide compatibility: equipped with 3.5mm cable and 3.5mm to 2rca cable, this receiver transmitter adapter can be widely used in your computer, laptop, home stereo system, headset, smartphone, MP3 player, CD player, etc.