Features:[Wireless Keyboard and Mouse Set]It is a 2.4GHz wireless QWERTY keyboard and Mouse set. Compatible with for Windows 7 / 8 / XP / Vista desktop, laptop and notebook.[2.4GHz Wireless Connection]With included USB interface adapter, no driver needed, just plug and play. 2.4GHz wireless connection, enjoy up to 10 meters wireless control.[High Sensitive Mouse]Adopted infrared AVL technology, the mouse ensures more accurate and fluent control, very easy and accurate to operate left / right mouse, move cursor, etc.[78 Keys Keyboard]78 keys keyboard, big size keys, comfortable to type. With multimedia function key combination (pressing FN + F1-F10), very convenient for work and entertainment use.[Energy Saving Mode]If keyboard is not used for 5 minutes, it will be dormant. Press any key to active. Low power consumption, just needs one AAA battery for keyboard and one for mouse (not included).Note 1: USB Dongle is placed at the back of the mouse.Note 2: You need to buy yourself two AAA battery.Note 3: Low battery indicator light will flashing when battery is low.