you could get the same results or better with a good pumice stone [SEP] this item will slightly smooth rough skin but does little more you could get the same results or better with a good pumice stone it is battery powered takes aa so it does not have a lot of power to it i am disappointed and sadly would not recommend this product it just is not capable of doing what i expected with this product and i do not see it being able to remove any callusi have received this item at a reduced rate in exchange for an honest review and i hope that others find this helpful i do not think its worth the money