Introducing the only cordless electric nail file good enough to be called U-power! New from KUPA Inc., the U-power cordless electric file delivers incredible speed, power and durability! Everything you expect from a U-power with one major advantage – it’s cordless! Now you can take your U-power with you, where ever and when ever you need it. On the road or simply from the manicure table to the pedicure spa the U-power cordless provides unsurpassed quality & performance without compromise.