Ergo Mouse - Natural ergonomic vertical mouse designed for right-handed that promotes natural hand posture while using the mouse for long-lasting comfort; 6-button mouse to increase your productivity
3 DPI Levels - Optical sensor for accurate navigation; Mouse sensitivity can be changed with the DPI control button; Adjustable 3 DPI levels of the 800/ 1200 (default)/ 1600
Wireless Freedom - Wireless 2.4GHz ergonomic vertical mouse provides up to 10 meters operation range; Nano USB receiver with storage compartment, easy for you to store your USB
Power-Saving - Built-in power ON/OFF switch button and power-saving function. Two AAA batteries needed (batteries are not included in the package)