AmazonBasics Ergonomic Wireless Mouse - DPI adjustable: Black $5.42, Blue $5.75

Compact wireless mouse with adjustable DPI for preferred sensitivity (600, 1000, 1600, 2400, or 3600 DPI)
Advanced optical sensor; works on most surfaces; clickable metallic scroll wheel; back/forward thumb buttons for easily navigating web pages
2.4 GHz wireless connection with a 33-foot range; uses AES-128 encryption for added security; this mouse uses a small USB receiver that can stay plugged into your computer without obstructing other ports
Ergonomic shape with rubberized sides ensures a comfortable hold; compatible with Windows 7, 8, and 10; uses 1 AA battery (included); sleek Black color
Measures 4.1 by 2.9 by 1.5 inches; backed by an AmazonBasics 1-year limited warranty