It’s a pocketable power bank that’s easy to carry with you wherever you go. “I don’t leave home without it,” swears one user.

Several reviewers love how slim and small this portable charger is, saying that it reduces clutter from pockets and bags, and it doesn’t require any extra cords. One reviewer says, “I bought it and was blown away with the power it packs; it will charge my iPhone one time and a little more and is half the size of a wallet.”

Users say it snaps to your phone instantly and is strong enough to stay engaged in your pants pocket or a backpack. While there isn’t a built-in USB-C cord, it does include a port for charging the pack itself. According to one user, it charged their iPhone from “12% to 85% in 20 minutes.”

It’s recommended for Apple smartphones, but several use it for charging their Google Pixel.

It snaps magnetically to the back of your phone and doubles as a tripod, thanks to its built-in stand.