Description: Bluetooth Version: 5.0 Headphone battery capacity: 40 mAh lithium polymer battery Charging capacity: 300 mAh Call duration: about 4 hours Listen to the song: about 4 hours Headphone charging time: about 1 hour Charging time of the Box: approximately 2 hours Waterproof level: IPX5 Standby time: 120 hours Headphone charging time: about 50 minutes Charging time of the Box: approximately 1.5 hours Button: touch button Transmission distance support protocol :HSP/HFP/A2DP/AVRCP
volume + / volume - previous track / next track accept / reject calls Siri function for iPhone, voice assistant for Android phone