Specification：
Colors: White, Black
Material: ABS
Bluetooth version: Bluetooth 4.2
Effective distance: 10M
Working voltage: DC5V
Working temperature: -30 ° C -80 ° C
Resistance: 18Ω
Frequency response range: 20Hz-20KHz
Headphone charging time: 2h
Theoretical talk time: 10h
Theoretical music playing time: 8h
Battery capacity: 160mA
Wearing method: in-ear
Features: intelligent noise reduction, power display, volume adjustment, answer / hang up phone, music switch

Notes:
1.The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.
2.Please allow slight deviation for the measurement data.
3.Thanks for your understanding