Bluetooth Version:    v5.1

Bluetooth Profiles:    HSP, HFP, A2DP, AVRCP

Chipset:    JlieLi AB6976D8

Earbuds Input:     5.2V，40mA*2

Charging Case Input:    5.2V, 300mA

Impedance:    32Ω

Frequency Range:    20-20KHz

Operating Distance:    10m

Charging Time:   1.5 Hours

Playing Time:     5-6 hours

Battery Type:    Lithium Battery

Battery Capacity (Earbuds):    40mAh*2

Battery Capacity (Case):     300mAh