S530 Wireless Bluetooth Earphones Mini Invisible button with Mic for Cellphones

Features:
1.Charging voltage: DC5V 150mAh
2. Working current: 25-35mA
3. Bluetooth A2DP Working range: 10m
4. Output power: 35mW
5. Frequency range: 2.401-2.480GHz
6. Distortion factor: ≤1%
7. Frequency response: 20Hz-20KHz
8. Working Time: Music/ 4-6 hours (The Volume will affect the time)
9. SNR: S/N≥95
10. Charging Time: 1h-2h
11. Talk time: 4-6 hours, play time: 4-6 hours
12. Music Playing Time: up to 4 hours
13. Frequency Response: 20 ~ 20000Hz
14. Sensitivity: 80dB
15. Impedance: 32 ohm
16.100% brand new and high quality
17.The bluetooth master control chip.
18.Can talk, listening to music
19.Built-in DSP audio processing system, can be a very good eliminate Noise and echo, to ensure clear communication, and music.
20.2 in a row, to the telegraph, voice prompt operation.
​​​Package Content :
1 x S550 Bluetooth Headset
1 x USB Charging Cable
1 x User Manual