1. Bluetooth 5.4 chip: JL JL7003F4 2. Battery capacity: 250mAh; Charging time: 2 hours 3. Usage time: 28 hours; Standby time: 180 hours 4. Size: 172*159*70mm; Weight: 159g 5. Support Bluetooth, Aux and other modes 6. Specially designed for children
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