Optical mouse with a 16,000 DPI sensor tracks even the finest movements for incredible precision and accuracy Wireless technology connects via Bluetooth or 2.4GHz Wi-Fi to keep you free from the limitations of cables Eight independently programmable buttons allow you to assign macros and secondary functions to help you work and play with efficiency Pairs with up to four devices so you can seamlessly switch between your computer, tablet, or TV with just one click Rechargeable battery delivers up to 400 hours of gameplay in Bluetooth mode and up to 200 hours in Wi-Fi mode Durably designed for up to 50 million clicks so you can enjoy years of reliable use