Sold as 1 Each. Ideal For: IT departments that need high-performance, secure wireless connections and ease of deployment and end-users who want to remain comfortable while working long hours. Long Battery Life: The Signature MK650 Combo for Business includes a AA battery for the mouse that lasts up to 24 months and 2 AA batteries for the keyboard which last up to 36 months. Enterprise Secure: Logi Bolt wireless technology addresses rising enterprise security concerns with Secure Connections Only ModeBluetooth Low Energy Security Mode 1, Level 4 protection. All Day Comfort: The integrated palm rest on the keyboard and contour shape mouse means more comfort for long days at the desk. The Upgrade Everyone Deserves: Issuing a Signature MK650 Combo for Business improves your employees productivity, speed and overall experience. Works On Multiple Platforms: Seamless compatibility with Windows, macOS, Linux, Chrome OS, iPadOS, and Android. Two Ways To Connect: Choose between the Logi Bo.