Calus D3 Pro Bluetooth Portable Speaker
This device offers Bluetooth connectivity for wireless audio streaming, 360° surround sound with bass boost, and a 3600mAh battery providing up to 7 hours of playback. It is IPX5 waterproof and shock-resistant with a built-in microphone and Type-C charging support.
- The description claims the device provides up to 7 hours of playback.
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