Adesso iMouse T50 - Wireless Programmable Ergonomic Trackball Mouse

Adesso iMouse T50 - Wireless Programmable Ergonomic Trackball Mouse Hand Orientation: Both Hands Resolution (DPI): 4800 dpi Power Supply: 2 x AAA Batteries Distance: 30 ft. System Requirement: Operating System: Windows 2000 / XP / Vista / 7 / 8 / 10 Connectivity Interface: USB port for wireless dongle receiver Package Contents: Adesso iMouse T50 2.4GHz Wireless Trackball Mouse USB Wireless Receiver (2) AAA Batteries Quick Start Guide