As a family who rely heavily on electronics, we're always misplacing the wall plug for our chargers which in return causes chaos in my house. Buying this was kind of a must, especially since I just got my youngest kid a tablet for Christmas (more chaos). It is a three prong plug on the back which will be in most houses in the US, so convenient again. I love this because it doesn;t take up the wall plug and render it useless to other appliances. I like the little top part where you can put the phone in to rest while it is charging as well.