Never get stranded again with the Adrienne Vittadini charging card holder wallet. Its made of PVC and has a magnetic snap closure. The interior is fully lined with 2 slip pockets and a key ring. The exterior features 1 back ID window. The wallet contains a built-in, reusable, and completely portable USB charging power bank. It is compatible with smartphone products. You can now charge your phone at work, the gym, while shopping, or even on vacation. Dimensions: 3.25H x 4W x 1.5D.