The Enter Wireless USB Mouse & Keyboard Combo is based on the latest 2.4 GHz technology that allows high radio frequency. With a mouse stand that acts as a charger and signal receiver at the same time, the set indeed has an exclusive design. Having a scroll wheel and volume knob incorporated in it, the keyboard has a set of 20 hotkeys for direct access to the frequently used features. The batteries of both the products are really durable and show a warning sign whenever the battery is at the verge of reaching its end point. Both the keyboard and mouse are perfectly compatible with Windows 98/2000/XP/VISTA.