. Headphone parameters
Bluetooth version: V6.1 + EDR
Wireless frequency: 2.4GHz
Support protocol: A2DP1. 3/HFP1.6 HSP 1.2/AVRCP1.6/D11.3
Transmission distance: 15 meters
Battery capacity: 60mAh
Charging voltage/current: 5V/1A
Play/talk time: about 12 hours
Charging time: about 1 hour
Standby time: 360 hours
Speaker impedance: φ14. 2mm 32 Ω
Sensitivity: -42 dB
Operating temperature: -10-50 ℃
2. Charging box parameters Input voltage/current: 5V/1A
Battery capacity: 500 mAh
4. Product list: earphone * 2, charging box * 1, charging cable * 1, manual * 1P



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