Bluetooth Version：V5.0

Support：HFP，HSP，A2DP，AVRCP

Bluetooth chip：CSR

Valid range：100meters

Battery capacity：3.7V 500mAh

Working time:about 20hrs

NC working time：about 30hrs

Stand by：300hrs

Charge interface：Mirco

Charging time：about 2hrs

Speaker：40mm

Charging voltage ¤t：DC5V 0.5A

Peak ANC ：20-22db

Frequency：20Hz-20KHz

Impedance：32Ω

Max SPL：110dB

Support 3.5mm Aux plug

Microphone sensitivity：-40±5dB