Bluetooth 5.3; Chip: JLAC7003F4Battery capacity: 400mAh; Charging time: 2 hoursUse time: 46 hours; Standby time: 200 hoursSize: 190*169*80mm; Weight: 163gSupport Bluetooth, AUX and other modesPrompt tone in English and Chinese is supported: Double click the power button in unpaired state.