Bluetooth specifications: Bluetooth V5.4 Jerry AC7003; Support protocol: Headset Hands-free A2DP Avrcp

Transmission range: 10 meters; Transmission frequency: 2.4GHz

Maximum RF output power (EDR): 4DB Modulation type (EDR): GFSK, π/4-DQPSK

Speaker: 13MM; Impedance: 32Ω±15%

Frequency response: 20~20000Hz

Sensitivity: 98db±3db

Charging voltage: DC5V; Charging time: about 1 hour

Charging box battery capacity: 360mah; left and right ear battery capacity 30mAh each

Talk time: about 4 hours; Music time: about 4 hours

Net weight: 57.6g (including charging compartment); bare device weight: 3.7g (single ear); size: 60.6*45.2*23mm