- The Microsoft Surface Arc mouse is perfect for travel, because it folds down flat - Snap it into its curved shape and it turns on automatically and it powers off when it's flat - It's got a touch sensitive surface which lets you scroll vertically and horizontally - You won't need a dongle - the mouse pairs over Bluetooth for a strong and reliable connection - Microsoft's BlueTrack Technology works on most surfaces, so you don't need a mouse pad - The two included AAA batteries give it up to 6 months of battery life