Product information: Shell materials: cast resin and natural sand Battery capacity: 4000mAh Speaker usage time: Approximately 8 hours at 50% volume; Lighting: Approximately 4 hours at 100% brightness Speaker: Approximately 8 hours at 50% volume; Lighting: Approximately 4 hours at 100% brightness Battery type: Rechargeable lithium-ion battery Output power: 5V/2A Charging time: 5.5h Speaker configuration: 45mm full audio driver and passive radiator Amplifier: 20W Class D amplifier Size:133*70mm Packing list: 1*Speaker + Data cable+manual Product Image:

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