1, Bluetooth 5.3; chip: JL6955F 2, Battery capacity: 400mAh; Charging time: about 2 hours 3. Use time: 12 hours (10 hours in light mode); Standby time: 180 hours 4, Size: 203*172*75mm; Weight: 190g 5. Support Bluetooth, TF card, AUX and other modes 6, support Chinese and English prompt tone: double-click the power button when not paired"