Features:

1. Driver: 15mm

2. Impedance: 32 OHM

3. Bluetooth version: Bluetooth v4.1 + EDR

4. Output power: 30mW;Battery capacity 60MAH

5. Bluetooth distance: 10 meters

6. Frequency response: 20-20000Hz

7. Operating voltage range: 3.0V-4.2V

8. With A2DP / AVRCP high quality stereo audio transmission and remote control protocol

9. Powerful noise de-noising circuit (active noise reduction)

10. switch between Chinese and English (boot does not connect Bluetooth state, press the switch 2 times)

11. Charging time about 1 hour .

12. Talk time is about 2-4 hours,music time about 2-4hours

13. Standby time is about 120 hours ,The charging time is about 60 minutes