Earfun Tune Pro Wireless Headphones (black)

Bluetooth version: 5.4 Frequency response: 2.402 GHz - 2.480 GHz Transmission power: <7 dBm Range: Up to 15 m (without obstructions) Battery capacity: 1100 mAh Charging time: 3 hours Operating time: Up to 120 hours with ANC off / up to 80 hours with ANC on Input: 5 V/1 A