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 Mouse Material: ABS Wireless: 2.4g Wireless Distance: Approx.10m / 10.9yd DPI: 800dpi; 1600dpi; 2400dpi Keys: 6 Keys Battery Type: Built In 600mah Lithium Ion Battery Product 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