It says that it takes two AA batteries, but it doesn't. I tried AAA batteries, those are also too large. There's no instructions or even real packaging when it arrives to see if it's written anywhere else. Waste of money!
I bought this for my 7 year-old daughter for Christmas (trying to teach her good facial hygiene and cleansing young). She loves it and uses it every morning. I love how non-aggressive and soft the bristles of the brush are. I might be buying one for myself in the near future.
Comes with 2 brushes of different texture so you can pick which is best for your skin type. It's small and easy to pack when traveling. Just wish it came with direction of where you can buy replacement heads