＊ Bluetooth Version: BT 5.0

* Profiles: HFP V1.6;HSP V1.2;A2DP V1.3;AVRCP V1.5

* Driver Unit: Dynamic ∮6mm

* Impedance: 16ohm+/-15%,94db+/-3db,2mW

* Speaker Frequency: 20-20K HZ

* Charging Time: 1.5 hours

* Headset Battery Capacity: 40mah * 2

* Charging Case Battery Capacity: 470maH

* Music time: 4 hours