The I-Rocks RF-6577L wireless keyboard and laser mouse combo uses the latest 2.4GHz ISM RF technology to provide you with extended range and flawless communication between the keyboard, mouse, and your computer. Four automatically selected channels eliminate any possible interference when this keyboard and mouse combo is used around other RF devices.The 2.4GHz ISM RF Digital Radio technology allows the RF-6577L to stay connected to the devices in up to a 10M radius. The 2.4GHz wireless communication link operates in the 2400 - 2483 MHz frequency band available unlicensed world wide for Industrial, Scientific and Medical (ISM) applications. For users that demand the highest performance, quality, and convenience, the RF-6577L keyboard and mouse combo is a perfect choice. - Excellent 2.4GHz (FHSS) RF technology offers greater range up to 10M away from the USB receiver with frequency hopping technology and 8,388,608IDs and enables less interference in your wireless environment. - Ideal for home entertainment computer and meeting room presentation tool. - Comfortable scissors-structure keyswitches architecture for faster and quieter typing. - Two conveniently located side-buttons allow you to easily go back and - forward in your web browser. - Unique and ergonomic shape for maximum comfort and also has easy to hold rubber coated side grips. - On/off switch to maximizes battery life. - Two user settable sensor sensitivity settings - 800 and 1,600 dpi resolutions.