1. Magnetic charging, more convenient
2. The weight is only 3.7g, small and light
3. CVC6.0 noise reduction, filter out background noise, provide you with clearer call sound
4. Built-in rechargeable lithium-polymer 40mAh battery, continuous 4 hours audio playback time, 6 hours talk time, 0.4-1 hour charging time (single earphone)
5. Charging time: 1-2 hours
6. Charging input: DC 5V
7. Standby time: 180 hours
8. Wireless range: 33 feet
9. Bluetooth version: V4.1
10. Frequency range: 2.402GHz-2.480GHz
11. Bluetooth profiles: A2DP, AVRCP, HFP, HSP
12. With Microphone: Yes
13. Sensitivity: 123dB
14. Support memory card: No
15. Frequency response range: 20-20000Hz
16. Waterproof: Yes
17. Vocal Principles: Dynamics
18. Support APP: No
19. Volume Control: No