12000 MAH Mobile Phone Power Bank is provided by our company which is comprised of a special battery in a special case with a special circuit to control power flow. This bank allows you to store electrical energy and then later use it to charge up a mobile device. This power bank is becoming popular these days as our gadgets or devices were all getting smarter & versatile tools in our daily lives. 12000 MAH Mobile Phone Power Bank acts as a power backup for different devices to charge them up. This bank is very cost effective and can be easily purchased by our valued clients at affordable prices, in bulk quantities.