The Zodiac High Density 10000 mAh Power Bank is compact enough to fit in the palm of your hand, yet powerful enough to charge up your devices on the go. It comes with a handy dual-purpose Micro-USB-to-USB charging cable, which can be used to recharge the power bank or any device featuring a Micro-USB input, including Android smartphones. Power banks are permitted in carry-on luggage only, and at the discretion of TSA agents. Please charge power bank before initial use.