1. Power supply mode: USB 5V power supply
2. Bluetooth: Bluetooth 5.0 + EDR specification
3. Output mode: USB port /3.5mm audio interface dual output
4. Receiving distance: not less than 10m
5. Dimensions: 2.5 x 6 cm
6. Built-in microphone, high-definition hands-free call, more convenient driving
7. Standard accessories: 3.5mm audio data cable