good product should have bought sooner [SEP] this works exactly as stated mine came perfectly boxed with all parts and an instruction booklet so far the batteries keep their charge for a long time i have used it briefly on occasion and now today continuously for about a half an hour and they still have not hesitated the cord included is the spiral type telephone style so it can be stretched as needed should i want to use the unit for a longer time the filing bits appear sturdy and made very short work of my fingernails however i purchased this for my unusually hard toenails and it worked like a dream to file those down in short order i love this product and it seems to be worth the much better than the other cheaper device that i have been struggling with my only problem why did i wait so long to order it