Lenovo Essential Wireless Combo Keyboard & Mouse Gen2 Black Reliable 2.4GHz wireless connection with Multiple Pairing Protocol be Eco-Friendly with 65% Post-Consumer recycled plastic for both Keyboard and Mouse Low-profile 2.5-zone keyboard layout LED Indicator for Keyboard: Low-Battery, FnLock, NumLock Adjustable tilt leg and spill-resistant keyboard design One-touch dedicated Media Controls AES-128 encryption for the Keyboard Full-size ambidextrous Mouse for Left or Right-Hand