Prodect Discription Feature: Long battery life: 15 hours of total battery life, continue to use the power supply. When the game mode is turned off, a single charge can provide about 6 hours of service, which is more durable in conjunction with the charging compartment. : Product Name: Wireless Earphones Bluetooth-compatible version: 5.3; Material: ABS; Support protocols: HSP1.2, HFP1.7, A2DP1.3, AVRCP1.6; Decoding format: AAC SBC; Bluetooth-compatible range: 10m; Charging compartment capacity: 3.7V 300MAH; Headphone battery capacity: 3.7V 40mAh; Charging box: can be charged 3 times; Headphone charging time: 1.5H; Box charging time: 1.5H; Working hours: 6 hours; Talk time: 5 hours; Headphone driver unit: 10mm, 32 ῼ; Frequency response range: 20-20KHZ; Charging port: TYPE-C; Color: black;