I recently received this Emjoi Micro-Pedi Nano callous remover as a gift. It's the perfect gift for a beauty girl like me who doesn't always wear sensible shoes and tends to neglect her feet! Wearing heels makes the feet build up callous quickly. I have read a few bad reviews on this little gadget saying that it just didn't work so I was anxious to try it. What is Emjoi Micro-Pedi Nano Callous Remover? The Emjoi Micro-Pedi Nano callous remover is a battery operated callous remover. It take 2 AA batteries. The is also a plug in version. Neither version is waterproof. The rollers that remove the callous are made with micro mineral particles that "pulverize" hard calloused skin. It spins 30 times a second. My Emjoi came with 2 blue extra course rollers and a purple extreme coarse flex roller, 2 cone rollers, a manicure kit, a cleaning brush and a travel pouch. The cone rollers are for removing callous between and under the toes. The manicure kit con...