Wireless Headphone with 40mm Massive Drivers, Mountainous Playback Upto 70 Hours, Asap Charge

Category Headphones Driver Size 40 mm Impedance 32Ω Sensitivity (dB) -80db<+/-0.1% Frequency Response 2.4GHz-2.480GHz
Battery Capacity (mAh) 750 mAh with Protection Board Playback Time upto 72 hours (at 60% volume) Charging Time 2-3 hours Standby Time 500-600 hours Bluetooth Version V5.0