This rugged beauty includes exceptional features like two 50mm high-quality speakers dual pairing for true stereo sound switchable equalization (EQ) for sound enhancement outdoors and a powerful internal rechargeable battery for you to charge your mobile devices from the speaker. But wait there’s more!Equipped with dual 50mm drivers the integrated omnidirectional diffuser channels music in all directions creating 360 degrees of immense sound. A large passive subwoofer housed in a tuned and ported enclosure delivers incredible bass.The wireless portable speaker comes with a selectable Indoor/Outdoor EQ function that delivers bold rich sound in all environments. Switch it to OUTDOOR and let the outdoor party begin! Don’t forget to invite the neighbors.Large rubberized front buttons make it easy to skip tracks and adjust volume even when your smartphone or tablet is safely tucked away.With its 6000mAh rechargeable battery you’ll enjoy up to 15 hours of continuous music. With BoomBottle+ you can quickly charge up your smartphone tablet or other mobile devices while enjoying your music via the 2.1A USB charging port.The portable speaker comes equipped with a ¼ inch thread bottom plate so you can mount BoomBottle+ + on a camera tripod or other mounting systems.Your BoomBottle+ purchase includes a handy carabiner clip great for hooking your speaker to a backpack. And it also comes with a 12W/2.4A USB wall charger and USB charging cable so you are ready to go.