Frequency Range:2.4026GHz-2.480GHz

Operation:Class 2

Mode:headset/handfree/A2DP/AVRCP

Operating range:up to 30 feet (10 metres)

Single Earbud Battery:45mAh

Charging Case Battery:300mAh

MP3 Playing Time3 hours 

Standby Time:≥100 hours

Charging Time:≤1.5 hours

Charge Voltage:3.7V

Size:14.3*23.6*17mm

Earbuds Weight:4.1g*2

Charging Case Weight:39.6g