DELTACO wireless compact silent mouse, 1600 DPI, USB receiver, 4 buttons, dark gray Wireless compact mouse with optical sensor and silent clicks and scroll. The mouse is a so-called Silent mouse, and has almost silent left and right clicks. In addition to the reduced sound level, the mouse gives a much more pleasant feeling when used. • 2.4 GHz USB receiver • Silent clicks • Powered by 1xAA battery (not included) • 125 Hz • 800/1200/1600 DPI • Range up to 10m • 4 buttons with scroll wheel • Compatible with Windows 7 or later, OS 10.8 or later and Chrome OS Weight: about 62g