1. Drive: 15mm

2. Impedance: 32 OHM

3. Bluetooth version: Bluetooth v4.1 + EDR

4. Bluetooth use band: 2.4GHz

5. Power level: CLASS II

6. Output power: 30mW

7. Bluetooth distance: 10 meters barrier

8. Frequency response: 20-20000Hz

9. Operating voltage range: 3.0V-4.2V

10. Mitou sensitivity: -42dB

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

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

13. switch between Chinese and English (boot does not connect Bluetooth state, press the switch 2 times, hear the tone switch successfully)

14. Charging time about 1 hour (power indicator charging: red light, full power: red light off (blue light).)

17. Talk time is about 4-5 hours

18 music time about 4-5 hours

19. Standby time is about 120 hours

20. Charging time is about 60 minutes

21. Battery capacity 60MAH

22. Charging power: DC5V power supply [round hole interface] (computer USB port, mobile phone charger, car charger)

23. Compatible phone: compatible with Andrews, Apple, Microsoft, Saipan system with 99% of the Bluetooth phone

Package Includes:

• 1 Pair Bluetooth Earbuds

• Charging Cable

• User Manual