Give it up for EMR tracking technology. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Your average $5 wired mouse has no batteries.

TL;DR: The Razer Cobra HyperSpeed Gaming Mouse is an ultralight 62-gram wireless mouse featuring the advanced Focus X 26K Optical Sensor, Optical Mouse Switches, and customizable Razer Chroma RGB ...