BEWARE: Before first usage, please charge the device 8 hours using the included USB cable! PediCurve is an electric callus remover developed in Denmark for optimal foot care. Our electric callus remover has been developed in comparison to a normal electric callus remover with an innovative glass plate that effectively removes callus on the feet in a completely new and very gentle way. So you always have smooth and soft skin Use your callus remover electrically while bathing and say goodbye to pumice stone, foot rasp, callus file and say hello to perfectly smooth and soft feet. Every time you use your electric callus remover, it feels like a visit to the salon where you remove dry, dead and calloused skin effectively and gently Our unique whetstones not only give your feet a smoother foot care than normal electric foot files, but also avoid regular and unregular changing of normal sanding rollers. Our glass grinding stones last at least 1 year - that's why we also give a 1 year warranty on wear parts. PediCurve is designed with a rechargeable battery that can be charged effectively by solar panel so you can also protect the environment. This new model has also been developed with a USB port that can be used in situations where the solar panels cannot be used. It has never been easier to treat yourself to a pleasant callus remover treatment. Our electric callus remover is 100% waterproof, so you can even use it in the bath. PediCurve is made with a glass whetstone that should be used on wet or damp skin for the best result. The foot file is made in an ergonomic design, making it easy to handle whether you use it at home or when travelling. We have spent years developing our callus remover and unique glass whetstone that gives you the softest skin. Therefore, we also give a 1 year warranty on the machine itself in the event of an accident. In addition, we provide a 1 year guarantee on the whetstone – even against wear.