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About this product
Bluetooth Version: V5.4
Working Range: Barrier-free 10 meters
Wireless Frequency: 2.402-2.480GHz
Headphone Battery: Lithium battery 3.7V, 25mAh
Charging Box Capacity: 250mAh
Charging Input: DC5V-300mA
Charging Time: 2 hours
Talk Time: About 3 hours (80% volume)
Music Play Time: About 4 hours (80% volume)
Charge/Discharge Cycle: ≥300 times