This is a 2.4GHz wireless keyboard and mouse set, with USB interface receiver. The ultra slim keyboard consists not only of normal wireless keyboard keys, but also of multimedia control keys. Plug and play, simple and smooth, and its wireless operating distance is up to 10 meters. With this portable keyboard and mouse combo, you can enjoy effortless control of the Desktop, Notebook, Laptop and more to search movies, surf the Internet and chat with your friends, etc. 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 thechnology, 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. Specifications: Model Number: HK03 Transmission frequency: 2.4GHz Operating distance: Up to 10 meters / 30ft (no obstacle) Keys Number: 78 Battery: 1 * AAA battery for keyboard, 1 * AAA battery for mouse (not included) Keyboard Working voltage: 3.0V Keyboard working current: 1.5mA Color: Black Keyboard size: 28.5 * 12.0 * 2.5cm / 11.22 * 4.72 * 0.98in Keyboard weight: 269g / 9.49oz Mouse size: 8.0 * 4.8 * 2.4cm / 3.14 * 1.89 * 0.94in Mouse weight: 37g / 1.30oz Package size: 36.0 * 12.6 * 3.2cm / 14.17 * 4.96 * 1.26in Package weight: 397g / 14.01oz Package List: 1 * Wireless Keyboard 1 * Wireless Mouse 1 * USB Receiver 1 * Keyboard Protective Cover 1 * English User Manual