Type and click across computers effortlessly with SIGNATURE SLIM MK950, a keyboard and mouse that makes work life magic with powerful customization and shortcuts. Quiet typing and clicking gives you more focus, and less disturbance to others. Connect wirelessly with Bluetooth® or the_x000D_ included Logi Bolt USB receiver._x000D_ Battery Life_x000D_ Keyboard: 36 Months_x000D_ Mouse: 24 Months