Adesso iMouse S60R - 2.4 GHz Wireless Programmable Nano Mouse - Optical - Wireless - Radio Frequency - 2.40 GHz - No - Red - USB - 1600 dpi - Scroll Wheel - 6 Button(s) - Symmetrical - IMOUSES60R

Wireless Technology - Works up to 30 feet of wireless distance. Operates on 12 different channels, each with 65,536 different IDs.
4-Way Tilting Wheel - Allows for vertical and horizontal scrolling.
Enhanced Optical Engine - Provides tracking accuracy and precision on different surfaces.
Programmable Driver - Easy-to-use user interface allows for full customization within seconds.
Micro-switch - With 10 million times lifecycle.
Adjustable DPI Switch - Adjustable cursor moving speed from 800 to 1600 DPI.
Magnetically Storable Nano Receiver - Ensures you will never lose your receiver again. Tiny and convenient to plug into to your laptop or tablet.
Power On/Off Switch - Maximizes your battery life up to 6 months.