Bought this a few years ago for my husband and he uses it all the time. The trimmer takes a AA battery which lasts a long time. This comes with a few other attachments, works on eyebrows, ears and moustaches. Painless to use.

I paid $11.46 for this trimmer and I actually got it for myself. I love having little trimmers like these that come with the extra attachments to use on my eyebrows