Bluetooth Version: V5.3 Bluetooth Range: 10-15m Talk Time: Approx. 8 Hours Case Standby Time: About 130 Hours Earbuds Capacity: 50 mAh Rechargeable Li-ion Battery Case Capacity: 400 mAh Frequency Response: 100-20KHZ Speaker Impedance: 32 Ω Power Input: 5V Operating Voltage: 3.0V-4.2V Working Current: 5-10MA
