1. Bluetooth specifications: Bluetooth V5.4 Jerry AC7003; Support protocol: Headset Hands-free A2DP Avrcp
2. Transmission range: 10 meters; Transmission frequency: 2402-2480MHZ
3. Maximum RF output power (EDR): 4DB; Modulation type (EDR): GFSK, π/4-DQPSK
4. Speaker: 10MM; Impedance: 32Ω±15%
5. Frequency response: 20~20000Hz
6. Sensitivity: 98db±3db
7. Charging voltage: DC5V; headphone charging time: about 1 hour charging compartment charging time: about 1.5 hours
8. Charging box battery capacity: 400mah; left and right ear battery capacity 40mah each; size: 64.5*50*26.5mm
9. Talk time 7 hours (ANC 6 hours) (80% volume); Music playback time 7 hours (ANC 6 hours) (80% volume)
10. Net weight: 42.8g (including charging compartment;) Bare device weight: 3.8g (single ear)
11.Support ANC noise reduction function