Vertical Ergonomic Wireless Mouse VicTsing vertical ergonomic mouse dedicate to improving and alleviating hand fatigue. Vic Tsing ergonomic mouse use the exclusive 54° vertical angle encourages a healthy wrist and forearm posture which reduces muscle strain, so that your wrist and forearm smoother movement and less overall strain. The Vic Tsing vertical mouse is designed for daily work and it makes work more comfortable! 4 Different Sensitivity Options The Vic Tsing ergonomic wireless mouse has 4 adjustable DPI options (1000/1600/2000/2400 DPI), so you can easily change the cursor speed and enjoy different scenes. High DPI can improve your ergonomic wireless mouse accuracy. The highest DPI for this vertical wireless mouse is 2400, so that you can complete your tasks efficiently with effortless cursor control. Designed for Long-time USE This ergonomic wireless mouse has more buttons than a traditional mouse. Not only can help you adjust your ergonomic vertical mouse's DPI freely, but the two buttons on the side also allow you to browse the web pages and documents faster. The Vic Tsing ergonomic wireless mouse uses skin-friendly materials, smooth to touch. This ergonomic mouse's size is about 5. 04x3. 07x2. 83 inch/3. 14oz, and suitable for most hand shapes and sizes. Easy of Use Adopted advanced 2. 4GHz wireless technology can work stably and fast within 19. 22ft/15m on your Windows 10, Windows Vista, Linux, Mac OS X, Windows XP devices. This ergonomic mouse supports plug & play. You don't need to download any drivers or software, just plug the USB plug into your computer port and you can use the vertical mouse immediately. In addition, the groove at the bottom of the mouse is great for resting your pinky/side of hand. Smart Power Saving Mode This smart vertical mouse will automatically enter into sleeping mode(power-saving mode) after 10 minutes inactivity. Press any button to wake the ergonomic wireless mouse up at any time. The vertical mouse's battery has a long lifetime. An independent switch button on the back helps save energy effectively and smartly. ※ Notice : Backed by Vic Tsing 45-day money back and 18-month worry-free . ※