Material：Zinc alloy
Bluetooth Version/chipset：V5.3/6973D4
Transmission Distance：10m
Working Voltage：DC5V
Impedance：32Ω
Speaker Power：2mW
Earbud /charging case Battery (mAh)：earbud lithium battery: 3.7V, 30mAh, charging case lithium battery: 3.7V, 300mAh (with protection board)
Charging Time：Approx.1.5h Calling:Approx.3.2h(80% volume)
Music Play:Approx.4h(80% volume) Standby: 240h
1.Zinc alloy shell, hollow design, open and close the cover with one hand easily
2.Wireless5.3, faster, more stable and lower power consumption
3.Advanced bionic diaphragm, 13mm large dynamic composite unit
