Feature:1. Vertical Design: Ergonomic vertical design for relief and prevention of carpal tunnel syndrome.2. Three DPI Adjustable: Optical technology, precise control, 800dpi, 1600dpi, 2400dpi three adjustable.3. Wireless Connection: 2.4GHz wireless connection, easy to use and comfortable to hold.4. Multipurpose: Suitable for different devices, PCs, laptops, desktops, computers, etc.5. 6 Keys: The 6 keys mouse increases your productivity and is ergonomically designed to promote natural hand posture while using the mouse for lasting comfort.Specification:Item Type: Wireless Vertical MouseMaterial: ABSWireless: 2.4gWireless Distance: Approx.10m / 10.9ydDPI: 800dpi; 1600dpi; 2400dpiKeys: 6 KeysBattery Type: Built In 600mah Lithium Ion BatteryProduct Size: Approx.10.5 x 7.5 x 6.2cm / 4.1 x 3 x 2.4in.Package List:1 x Mouse1 x Receiver1 x Data Cable1 x User Manual