This portable charger external battery power bank has strong and durable polycarbonate shell for a compact drop resistant body., the high powered 2500 mAH capacity with one USB output: 5V 1A offers backup power for your devices while out of the house.It can detects your device to deliver its fastest possible charge speed up to 1 amp (two times faster than a computer USB port)The size of a lipstick it fits perfectly in your pocket. Recharges in 3 hours with a 1A adapter (not included) and the included Micro USB cable. Made from abs material, measuring 3.7*0.86*0.86 inches, this custom cute mini power bank 2600mah. Usage Scenarios: Office supplies, school stationery, corporate promotions, trade show giveaways. We offer logo printing and full packaging customization. Product Highlights: Compact size, lightweight, easy to carry.