. Light and portable the Surface Mobile Mouse delivers seamless scrolling and cord-free Bluetooth connectivityKey Product Info . Go-anywhere mouseWireless Bluetooth convenienceSmooth comfy scrolling Product Features Go-anywhere mouseEnjoy comfortable navigation on the go with Surface Mobile Mouse. Its light low-profile design travels well without the bulk of a traditional mouse. Wireless Bluetooth convenienceSurface Mobile Mouse pairs easily with your Surface using Bluetooth - no cords or dongle required - making for a clean clutter-free workspace. What\'s more it works on virtually any surface thanks to built-in BlueTrack technology. Smooth comfy scrollingSurface Mobile Mouse features a smooth sculpted design with a redesigned wheel that fits comfortably in your hand and supports smooth natural scrolling. What\'s in the box? . Microsoft Surface Mobile Mouse2 AAA batteries