i-rocks IR-7521L-BK Black 5 Buttons 1 x Wheel USB Laser 1600 dpi Mouse

Sensor sensitivity switching to 1,600 and 800 dpi laser technology ultra-precise laser tracking on most polished surfaces.
Ultra precision and smooth control..
Unique shape for comfortable operation.
Page Forward/Backward function for fast control of Internet web pages.
Plug-n-Play and Hot Pluggable