Functional Usage: Bluetooth Headset, Music Headset, Sports Headset Noise reduction function: Yes. Bluetooth Function: Bluetooth Version 5.0 Supported Functional parameters Applicable model: l0S/Android Bluetooth version 4.1 or more Battery capacity: 500 mAh charging bin headset 65 mAh Charging time: Charging box about 2 hours earphone about 2 hoursDuration: 45 hours for headphones Microphone: Yes. Headphones only 5.2G