Eirix Ergonomic Vertical Mouse, 2.4GHZ Optical Mouse with USB Reciever and Removable Palm Rest, Adjustable Sensitivity (800/1200/1600/2400 DPI) 9 Buttons for PC Laptop Computer (Wireless)

This is a type vertical mouse adopting human ergonomic design,and suitable for office. Removable palm rest and anti-skidding design on side, protecting your wrist and give you comfortable hand feeling when you working; stable office optical mouse, making your work efficient. Features: 1. Vertical Hand-gripping Mode with Removable Palm Rest, comfortable hand feeling 2. 9 functional buttons (left/right buttons, forward/backward buttons, volume+, volume-, roller, DPI,internet button) 3. Skin-like metarial on side, to enchance user experience 4. 2.4GHz Wireless Mouse, 10m effective distance 5. 4 gear DPI 800/1200/1600/2400, stable office optical mouse   Specifications: Material: ABS Buttons:9 buttons DPI:800/1200/1600/2400 DPI Interface: USB Battery: 1*AA battery Size : about 157.4mm*91.4mm*56.6mm Package included: 1 x Wireless Optical Mouse 1 x USB receiver 1 x AA battery