I've used it for two days, but it didn't quite fit my large hands, so I'm selling it. It's the type that plugs the receiver into your PC's USB port! Of course, the receiver is also included. However, I threw away the clear case and backing card, so it will be shipped wrapped in bubble wrap. Please be understanding (＞人＜;) The mouse has an eco-friendly feature where it automatically turns off after a while (a few minutes) of inactivity, even when powered on ⭐︎ It's very soothing! It's a conversation starter! Power supply: Battery-powered #Mouse #Hamster #PC