Powerful and portable Dual speakers, built-in subwoofers and audio sensing EQ give a rich sound for up to 12 hours on a single charge, and you can also dual pair two BoomBottle speakers for the ultimate audio experience. Full built-in control The integrated control buttons allow you to play, pause, change tracks forward/back, answer/end calls, adjust the volume or power the speaker on/off. Magnetic mounting Extra powerful Rare-Earth neodymium magnets used in the top and base are 100% mobile device safe, providing a secure grip for your device on the top surface and the speaker itself on the bottom. Unique bottle design It\'s slim compact enough to take with your wherever you go, easily fitting into your bike bottle cage, car cup holder and backpack bottle pocket. Ready for anything The rugged housing has a certified IP67 rating that makes it perfect for action-packed adventures, protecting the speaker from dust and water - it can even be submerged in up to 3 feet of water. 4 LED battery level indicator displays the amount of charge leftBuilt-in microphone for hands-free calling Bottle opener on the back of the speaker1/4” thread to secure it to any mount with a ¼” screwCertified IP67 rating protects the speaker from dust and water Bluetooth: BT 4.0 AVRCP, A2DP Wireless Range: 30ft Audio: 2 x 45mm speakers, 2 x passive subwoofers Frequency Response: 80hz - 18Khz Output: 12W (6W x 2) Battery: 4000mAh internal battery Dimensions: 185mm (H) X 72mm (D)  Weight: 1.25lbs