Condition: 100% New Item Type: Keyboard Mouse Set Material: ABS Optional Color: Black, White Supporting Battery: 3 x AAA Dry Battery, 2pcs for keyboard and 1 for mouse (not include) Keyboard Size(LxWxH): Approx. 285 x 120 x 23mm/11.2 x 4.7 x 0.9in Mouse Size (LxWxH): Approx. 85 x 48 x 26mm/3.3 x 1.9 x 1in Number of Keys: Keyboard 78 Keys, Mouse 3 Keys Keyboard Interface: USB Connection Principle: 2.4G wireless principle System Requirements: for Win7/for win8/for xp, does not need to drive the keyboard12.4G wireless transfer technology for strong and secured wireless signal. 2Ergonomic inclination angle, comfortable tapping feel, the wrist is naturally vertical when used, reducing hand fatigue. 3Responsive keys, quick to rebound, suitable for long?term typing, practical to use. 4Micro USB receiver, plug and play, without any driver, very convenient for using. 5Fine workmanship, stylish and simple, thin and lightweight, which can better show your individual taste.The mouse has a unique designed, please refer to the instruction manual before use.1 x Keyboard 1 x Mouse 1 x USB Receiver 1 x Keyboard Cover1 x Manual