Computer Accessories & Peripherals iMouse T40 Wireless Ergonomic Finger Trackball Mouse with Nano USB Receiver, Programmable 7 Button Design, and 5 Level DPI Switch, for Left and Right Hand

Ergonomic contour design - Minimizes pain and discomfort in forearm muscles from twisting, which can cause carpal tunnel syndrome.
Built-in 1.5” large trackball with optical sensor - accurately and precisely tracks with less muscle movement for maximum comfort.
East to install programmable driver - friendly user interface that lets you change button assignments, DPI sensitivity, scrolling speed.
Removable trackball - Can Be easily removed by pushing the trackball from underneath the mouse.
Adjustable DPI switch - adjustable cursor moving speed from 400-4, 800 DPI.
Note : In case of Wireless mouse, the USB receiver will be provided inside or along with the mouse

The trackball design allows users to use their fingers to move cursors on screen, reducing excessive hand movement. The mouse uses a 2.4 GHz radio frequency, offering a wireless range of up to 30 feet. Every mouse button can be customized to your preferred function with its programmable driver. With its 5 levels of DPI resolution (400 - 4800) The tactile trackball simultaneously provides superior accuracy and smooth motion, reducing hand movement and desk space requirements. Cleaning is simple! Just push the trackball outward from its back, clean it and push it back in place. Its ergonomically contoured large size makes helps relieve wrist pain, which maintaining your productivity.

	iMouse T30	iMouse T40	iMouse T50
Description	Wireless Ergonomic Programmable Trackball	Wireless Ergonomic Programmable Trackball	Wireless Ergonomic Programmable Trackball
Connectivity	Wireless	Wireless	Wireless
Wireless Range	30m	30m	30m
DPI	400/800/1600/2400/3200/4800	400/800/1600/2400/3200/4800	400/800/1600/2400/3200/4800
Sensor	Optical	Optical	Optical
Programmable	Yes	Yes	Yes
Trackball diameter	1.25" (35mm)	1.5" (40mm)	2" (50mm)
Batteries	AAA*2	AAA*2	AAA*2
Orientation	Right	Universal	Universal
Dimensions	6.0″ x 4.3″ x 2.0″	6.6″ x 4.5″ x 2.0	6.0” x 4.3” x 2.4”