Material:Premium ABS+Metal

Speaker Unit:Dymatics 40MM

Impedance:32Ω±10mW

Sensitivity: 110±3dB

Working Current: ≤20mA

Chipset:CSR4.1

Battery Capacity:500Mah

Working Time:≥25Hours

Charging Time:2.0Hours

Frequency:2.4-2.48Ghz

Protocol:A2DP/AVRCP/HFP/HSPV

Operation Range:≥10meters