Baseus True Wireless Earphones Model No.: Baseus Bowie E13 Battery capacity: 40mAh/0.148Wh (earphones), 400mÁh/1.48Wh (charging case) Earphone rated input: DC5V-80mA Charging case rated input: DC5V- 520mA Max. RF output power: Bluetooth(BLE) :3.02dBm