Minicute EZmouse2 2.4G Wired Vertical Ergonomic Optical Mouse, 400 / 800 /1600/3200 DPI, 4 Buttons - Right Hand Vertical design for more natural hold,prevent CTS MaterialsABS environmental materials,whichmakes it confortable and wear proof.It's health and environment friendly 4 buttons + scroll wheel,DPI adjustable from 600,1000,1600.Satisfactory for office and gaming use. right handed design