Ensure your phone never runs out of battery with Vivitar’s Power Boost Blue. Small enough to fit in your pocket, this power bank is both powerful and convenient, providing up to 1.5 full charges for your mobile devices. It allows for 25 hours of music time, 40 hours of talk time, and 15 hours of video time. With a suction cup support to never lose your power bank in a mess of clutter. Vivitar’s 4000 mAh Power boost is compatible with all Android and Apple devices as well as several headphones and speakers!