EVOLUENT VM4RW VerticalMouse 4 Right Wireless - Optical - Wireless - Radio Frequency - 2.40 GHz - Black - 1 Pack - USB - Scroll Wheel - 6 Button(s) - 6 Programmable Button(s) - Right-handed - 1

Scroll Wheel scroller type for dependable, hassle-free scrolling with maximum efficiency Features optical resolution for silky smooth movement Right-handed ergonomic fit for steady, painless usage with maximum productivity 6 total buttons for your convenience and optimal usage Computer device support for dependable, fast retrieval of information to ensure maximum convenience and usability Radio frequency wireless technology enables signals to travel efficiently and reliably with maximum dependability Battery Indicator mouse feature for better reliance and usability USB mouse host interface offers a more refined structure and safer to use connectivity Radio Frequency wireless connectivity helps reduce the clutter of wires Provides dependable and improved responsive feedback to ensure maximum reliability