Nakabayashi Digio2 Trackball Mouse, Compact, 2.4GHz Wireless, 5 Buttons, White, Z8364

●Minimum size With a 34mm ball, this trackball is one of the world's smallest (according to our research). The user-friendly design allows your ring finger and pinky finger to rest in a natural position.

●Auto speed control (ASC function) This function automatically adjusts the pointer speed to match the movement of the trackball. Switching to fixed mode is as easy as pressing the SPEED button.

●Quiet button All buttons are quiet, allowing you to focus on your work without disturbing others.

●Includes "forward" and "back" buttons for convenient internet browsing. *Not compatible with Mac. *Cannot be changed to other functions.

●Uses a laser sensor with higher reading accuracy than optical sensors. Dimensions/Weight: 88mm W x 95mm D x 47mm H / Approx. 105g (Receiver and batteries not included) Compatible OS: Windows 10/8.1/8/7/Vista, MacOS X (10.2 or later) Compatible Devices: Computers with a working USB port Resolution: 450-1200 dpi (Auto) / 600 dpi (Fixed) Radio Frequency: 2.4 GHz