Plug & Play - Comes with a tiny USB Nano receiver(stored within the back of the mouse) , just plug it into your PC and then forget it. 5 Adjustable DPI Level (2600/2000/1600/1200/800) - choose your own cursor speed. 2.4GHz Wireless Mouse- Ensures reliable connection with an increased working distance of up to 33ft (10m) and eliminates delays, dropouts and interference. Contoured shape with soft rubber grips provide all-day comfort. TeckNet Tru-Wave Technology - Provides precise, smart cursor control over many surface types. TeckNet Co-Link technology – after pairing there’s no need to re-establish pairing after a signal loss or shutdown. Hassle-free Design - Up to 24-months battery life with a battery level indicator. Smart auto-sleep mode saves power (battery life may vary based on user and computing conditions). Compatible with Windows XP, Vista, 7, 8, 8.1,10 and Linux. Works with Notebook,Chromebook, PC, Laptop, Computer, and more.(batteries are NOT included)