Wholesale Wireless Bluetooth Speaker Outdoor Subwoofer ...
2021-11-19u2002·u2002Battery description: 24-hour music playback built-in 20,000mAh rechargeable lithium-ion battery, which can support continuous music playback for about 24 hours (under standard test environment), and it can also charge other devices through dual USB ports. Indoor/outdoor sound effects: There are two sound modes, indoor and outdoor.
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