RELIABLE 2.4 GHZ WIRELESS CONNECTION. Only one USB receiver for both keyboard and mouse, keeping more ports open for other uses.You can instantly use the keyboard without installing any additional software. Also a strong and reliable connection without dropouts.MULTI-LEVEL POWER-SAVING MODE. Work for longer with long battery life, keyboard and mouse use AA and AAA batteries and the batteries are included in product . They provide up to 18 months of keyboard use and 12 months of mouse usage.
