Easy travel plug allows easy access and accepts three adapters and allows adding more outlets where you need them most. You can take it to work or school to make sure you have all the outlets you need to power your cell phone chargers, tablets, Bluetooth speakers and many more. Just plug into an existing 3 pong grounded socket and expanding it into 3 AC outlets. This outlet adapter is ETL Listed and has an electrical rating of 15A, 125VAC, and 1875W. The Maximm (4 Pack) 3 Prong Outlet Plug Adapter is for indoor use only.