Reliable Connection Up To 10 Metre. No delays or dropouts, even in the busiest wireless environments with Logitech Advanced 2.4 GHz. The mini USB-receiver included provides a reliable wireless connection up to 10 m. The laptop mouse features a built-in storage compartment. Take your mouse wherever you use your computer Up to 24-month keyboard and 5-month mouse battery life, auto-sleep — means you can watch YouTube videos, catch up on Facebook, explore last.fm for months without changing batteries The design of this keyboard creates a comfortable typing experience thanks to the low-profile, whisper-quiet keys and standard layout with full-size F-keys, number pad and arrow keys 6 Months Warranty