PUREX Technology 3000 DPI High Precision Wired Optical Gaming Mouse with adjustable Thumb-Rest - PXE-M535BU<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Adjustable 3000/2000/1500/1000 DPI hardware switch with LED indicating light， no software installation required. </span></li><li><span class="a-list-item"> Color LED indicates DPI values， 1000 DPI (Green)-1500 DPI(Red)-2000 DPI(Blue)-3000 DPI( Purple) </span></li><li><span class="a-list-item"> Ergonomic right-handed Design and 3-level adjustable Thumb Rest a prefect fit for different Palm Sizes </span></li><li><span class="a-list-item"> Avago A3050 Optical Sensor supports maximun 20g Acceleration. 500 Hz Polling Rate. </span></li><li><span class="a-list-item"> Unique Patent Feature of "Cursor back to Screen Center" with one Click </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41YrXKUswsL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31zTQcfspYL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/416QXngD2SL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31t8q69NkEL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41sF3J0%2B5YL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/519pONrW%2B1L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31NknYHmj6L.jpg" noproxy>