Best for travel and minimal use. [SEP] The power is so weak it hardly works. If it were more powerful it would be useful. Also the bristles on the brush head are very harsh on my skin and Im assuming replacement heads are not available to purchase, meaning after the brushes are shot, so is the device. I only paid $7.99 and I suppose in this case you get what you pay for. I would return it but the shipping would probably be what I paid for the brush.I do like the small size and color, it would be good for minimal use while traveling due to the compact size.