Water-Resistant Bluetooth Speaker with flexible mount. Ultra-portable speaker for any adventures – it has a builtin microphone and its unique flexible “tail” mount is designed to be completely universal in any situation. Easily fix Divenamic on a bike wheel, shower head or a bag and enjoy music whenever you want! Material: ABS plastic + silicone. Battery: 250mAh, Li-Polymer. Working time: 3+ hours Charging time: ~1-hour Built-in charging cable: USB to micro USB.