BRAVEN 710 Portable Wireless Bluetooth Speaker [12 Hours][Water Resistant] Built-In 1400 mAh Power Bank Charger - Graphite Stream your music over Bluetooth by syncing with a compatible device Aircraft grade aluminum exterior has been machined to precision, creating a beautiful sleek design Use the 1400mAh battery to play wireless audio for up to 12 hours Skip the traditional pairing steps on NFC-enabled devices to quickly pair your music device to the Braven 710 IPX5 Water Resistance Bluetooth & NFC for easy pairing with your device Pair Two 710's for true stereo. Top off your phone and small devices with USB out