Portable power bank that's a suitable size to put it into your bag, it's as small as a tube of lipstick. Great partner for your short trip. The battery has a quality of 2200 mAh (13mAh). It can charge most of your portable electronic devices such as a cell phone, tablet, or digital cameras, etc. You can recharge this battery more than 500 times. Many colors to choose from and you can add your customized logo to any. 3 1/2" L x 1" W x 1" H