you get what you pay for [SEP] i have only had this for a couple of weeks now and for the most part and considering the money i spent on it it is okay it charges via usb so no batteries needed or a cord i just plug it into my computer and let it charge the only problem i have had so far is when i went to take the cap off of it the blade itself got stuck inside the cap luckily they sent an extra blade with it i was finally able to get the blade out of the cap but unfortunately it broke i do not think it will last very long