Never be caught powerless again. This super-slim, super-powerful backup battery pack features a rechargeable 4200mAH lithium battery for long-lasting reliable power—whether you’re on a plane or at the park.
• DOUBLE DUTY
o The Boost 4200 features a Micro-USB DC input to use with most smartphone chargers and a high output (2.1A) USB port for charging mobile devices, including tablets.
• KEEP ON TALKING…OR TYPING
o When the Boost 4200 is all charged up, it packs enough power to charge most smartphones twice and caneven charge tablets—so every device gets the power it needs.
• SHAKE IT UP
o Just give the Boost 4200 a quick shake and the LED charge indicators will let you know how much battery charge you have left.
• PALM SIZED
o So small, so sleek, so elegant. Fits perfectly in your pocket, purse or palm for an anytime, anywhere power boost.