Keyboard SilentTouch Technology Adjustable keyboard height Spill-resistant design 2.4GHz wireless (10 meters) Nano USB receiver Caps lock indicator light On/Off power switch 2 AAA batteries (Alkaline Battery） Mouse SilentTouch Technology Contoured compact shape Smooth, responsive cursor control On/off power button 1 AA batteries (Alkaline Battery）

Reliable wireless connection Carry-around mouse 36-month keyboard and 12-month mouse battery life plus auto-sleep Logitech receiver and internal storage compartment in mouse Keyboard short-cuts Contoured mouse design with laser tracking Plug-and-play simplicity

Keyboard (K220) Mouse (M150) USB receiver 2 AAA (keyboard) and 2 AA (mouse) batteries