Characteristics and Interoperability Long battery life: 15 hours of continuous battery life when using the power source. A single charge can last roughly six hours when the game mode is off, making it more durable when used in conjunction with the charging compartment. Synopsis: Product name: Wireless Earphones; Material: ABS; Bluetooth version compatible: 5.3; HSP1.2, HFP1.7, A2DP1.3, and AVRCP1.6 are support protocols; AAC SBC is the decoding format; Bluetooth compatible up to 10 meters; 3.7 V 300 MAH charging compartment; 3.7 V 40 mAh headphone battery; 3 times charging box; Headphone driver unit: 10mm, 32 ῼ; frequency response range: 20–20 KHz; charging port: TYPE-C; color: black; Headphone charging time: 1.5 hours; Box charging time: 1.5 hours; Working hours: 6 hours; Talk time: 5 hours;