Bluetooth Version: v5.0

Bluetooth Profile: HFP/HSP/A2DP/AVRCP

Bluetooth Chipset:  PIXART

Earphone Input: 5V, 50mA

Charging Case Input: 5V, 300mA

Impedance: 16Ω

Frequency Range: 2.402G~2.483GHz

Charging Time: 1 Hour

Playing Time: Around 4 hours

Standby Time: 80 Hours

Earphone Battery Capacity: 40mAh x 2

Charging Case Battery Capacity: 330mAh

Battery Type: Lithium

Operating distance: 10m