Features: - Ergonomically shaped and soft rubber handle fits your hand and feels natural and comfortable. - Optical sensor with high sensitivity compared to other traditional optical mice, with a sampling rate of 1000 - 1600 dpi (freely selectable via DPI selector switch), which can be used on almost any surface. - 6 buttons and scroll wheel, left and right mouse buttons, forward and back buttons CPI buttons provide optimal comfort while surfing the web | Easy to use buttons and scroll wheel. - Avoid the possible occurrence of mouse arm or tennis elbow (RSI syndrome), this is the right choice for surfers and people who work in front of the computer for long hours every day. - Improved operability compared to traditional mice - Available for Microsoft Windows XP / Vista / 7/8 / Windows 8.1 (32-bit and 64-bit) / Windows 10 (32-bit and 64-bit), MacOS and Linux. Specifications: Material: ABS Keys: 6 keys Buttons: Left, Right, Scroll Wheel, DPI Button, Forward, Back, Key Life: 800 Million Times Type: Wireless DPI: 800-1200-1600 DPI Package Included: 1 x Vertical Mouse