T13 Airbuds ANC & ENC with Digital Display Bluetooth version: 5.3 Transmission distance:>10 meters Headphone battery capacity: 30mAh Charging box battery capacity: 350mAh Speaker:13mm Speaker impedance: 32Ω Music listening time: about 4 hours Call time: about 4h Standby time: about 48h Charging time: about 2h Charging the earphones in the warehouse: about 1.5h
