Introducing The DB2 - our dual speaker with unmatched sound quality, clear audio and powerful bass, now with multiple Bluetooth speaker pairing. One DemerBox is plenty to get the party started, but pair multiple DemerBox speakers to create an outdoor sound system at your next summer pool party. Up to (6) six DemerBox speakers can be paired together / multiple Bluetooth Speaker Pairing will not work with the original DemerBox. Speaker two 3 inch, 8 ohm, aluminum cone with rubber surround drivers. Audio Power 94db1ft. 11w per channel RMS. Battery 2600mAh Lithium Ion 12.6v. 40+ hours play time between charges. Class D audio circuitry. Bluetooth: 100 feet (30 meter) range. Real world tested at over 100 feet, line of sight. Actual performance depends on walls, RF interference and Bluetooth performance of your phone, tablet or laptop.• Incredibly loud, clear sound, powerful bass with crisp highs and punchy bass our professional-grade sound excels, providing the soundtrack loud enough for your outdoor adventures• Waterproof includes a port plug that installs quickly to become fully waterproof, never worry about rain at your backyard party or the speaker falling overboard again• Stores your stuff DemerBox is a waterproof case that opens to keep valuable items like your wallet, keys and phone safe and dry inside• A crushproof powerhouse built in a crush-proof pelican case, DemerBox lasts an incredible 40 hours between charges• Plus, it has internal USB charging to keep your devices juiced up for your entire adventure• Built to last: you don't like adding to landfills and neither do we that's why we built a fully serviceable speaker designed with sustainability in mind in the unlikely event that there's an issue, DemerBox can fix it