Scroll R1 1800 DPI USB Wired Optical Gaming Mouse with 6 Programmable Buttons, PRO-AIM Gaming Sensor $12.99 Fs Prime

http://www.amazon.com/Etekcity%C2%AE.../dp/B00JLC139A

PRO - AIM gaming sensors with high-end 6.4 million pixel sensor can achieve maximum acceleration of 20G easily. 1 millisecond response time makes you seckill opponents easily.
Ergonomically design and lightweight minimize hand fatigue for all-day comfort and control.
Customizable back/forward thumb buttons will perform back and forward functions for use in a web browser or file explorer.
Adjustable DPI with 3 sensitivity modes. Press the DPI button on the top of the mouse to switch between sensitivity modes
Gold-plated copper braided wire offers stretch resistance and durable use; Anti-Skid Rubber coating provides comfortable gaming experience