Review title is It works great. Who needs a barber? [SEP] This product works plugged in or for an adequate time on its rechargeable battery. the combs of different lengths lets you do your kids hair (or your spouse and relatives) without fear of botching it up. Start with the longer combs if you are concerned, and work down. Also, it gets really close if you want to simply do a military or crew cut. Norelco makes fine products, and this one does the job.