Optimized for Outdoors Experience remarkable audio with the boomBOTTLE - Rugged Wireless Mobile Speaker that fits right inside your bicycle water bottle cage. boomBOTTLE has been designed to bring entertainment to the outdoors. This wireless Bluetooth mobile speaker is weatherproof and durable, allowing you to take your music virtually anywhere. Remarkable Sound Dual 40mm drivers and passive subwoofer produce impressive audio and improved acoustics. The Omni-directional speaker cone sends music in all directions. Integrated Music Controls Easily control play, pause, track forward/backward, adjust volume and more with the integrated controls. Built-in Power A rechargeable lithium polymer battery provides up to 10 hours of continuous music playback. Use the included micro USB cable to easily charge boomBOTTLE before you leave the house. The charging port and aux input are carefully covered with a flap that closes/opens to protect against dust and debris. Speakerphone This dynamic speaker also includes a built-in microphone, making boomBOTTLE an enhanced speakerphone for your smartphone. Enjoy rich, clear audio and the option of phone conversations when needed. Use it Anywhere boomBOTTLE fits in most water bottle cages and cupholders and wirelessly streams audio to your device. Additionally, the 3.5mm auxiliary input has also been included for connecting other devices when wireless capabilities are not needed. Wirelessly Works with: All Bluetooth streaming A2DP audio devices including: iPhone, iPod touch, iPad, Android Devices, Smartphones, Tablets, Laptops and more. (Also works with devices using 3.5mm aux cable)