This is a great little travel toothbrush. It takes a single AAA battery which is nice. I work a lot of overnights so this is perfect for me to throw in my little cosmetic case to brush my teeth on the go. I don't know if its possible to order more toothbrush heads because it only came with one. This had three settings which are useful for sensitive teeth. It does come with 2 scraper heads which I don't think I would enjoy using as the toothbrush settings have a high vibration. Overall this works better as a toothbrush.