These insoles can be controlled straight from the comfort of your smartphone with the free Smart Warmer app. You can control the temperature or even schedule your insoles to turn on at the perfect moment. There's no need to worry about how much charge you have either, with a handy battery level indicator readily visible on the app, and if you're not sure whether your insoles are turned on, there's a convenient power indicator to set your mind at ease.
Once you have synced your insoles with the app, simply change to the second menu and switch them both on together at the press of a button. Simple and fun to use, just install the app and sync the insoles. You can even name the insoles to make them easily identifiable.