Function: support music， voice control， power display

Track: stereo

Color: black， white， pink， blue， beige

Use method: earplugs

1. Drive: 40 mm

2. 32 OHM impedance:

3. The Bluetooth version: Bluetooth v4.0 + EDR

4. The level of power: the CLASS II

5. The output power: 30 mw

6. Bluetooth distance: barrier-free 10 meters

7. Frequency response: 20-20000 hz

8. Working voltage range: 3.0 V to 3.0 V

9. Microphones sensitivity: - 42 db

10. Has the A2DP/AVRCP high-quality stereo audio transmission and remote control protocol

11. A powerful noise de-noising circuit (active noise control)

12. Switch in both Chinese and English

13. The charging time is about 1 hour (charging power supply instructions: red lights， full of electricity: go out.)