The wallet itself is super thin like literally credit card thin it's got a little control button on the front and it's pretty neat the idea is that it's supposed to be something that you can put in your wallet with you and bring with you it's run off Bluetooth technology, it's just gonna work with anything tha's Bluetooth enabled cell phone iPad. They have a app called CoolBitX crypto you can get in the app store. CoolWallet S actually waterproof and one charge will last two weeks for the battery which is pretty cool, they state that apparently it is bendable up to 15 degrees but they also specify not to do it but it is really very thin. You can hold lot of ERC20 token because it's holding ethereum clearly.