SACKit - Boom 150 - Exclusive & Stylish Battery-Powered Bluetooth Speaker! The Boom 150 is a new, sleek design of the popular BOOMit speaker. Not only does the Boom 150 play incredibly loud for a battery-powered speaker, providing up to 6 hours of playtime on a single charge, but it also delivers clear and clean sound even at maximum volume. With the Boom 150, you can easily bring the party atmosphere and sound with you to any space where the music needs to be turned up. Party Anywhere! Need to create a party atmosphere somewhere without an outlet? No problem! With a built-in rechargeable battery, you can play your music for up to 6 hours. If your phone runs out of power, the Boom 150 also works as a power bank, ready to charge your device and keep the music going. Enhanced Sound Experience: The Boom 150 speakers can be connected in stereo pairs for a wider and more detailed soundstage. While the Boom 150 is a mono speaker, pairing two speakers transforms them into a stereo system w