Easy Setup: Simply insert the nano USB receiver into your computer and use the keyboard instantly. Ergonomic design: Traditional structure gives you the familiar typing experience. Best Typing Angle: Foldable legs raise keyboard tilt angle for comfortable typing. Ultra Thin and Light: Compact size (17.5 X 5.3 X 0.4in) and light weight (16.5oz) but provides full size keys, arrow keys, number pad, shortcuts for comfortable typing. Package contents: Arteck Stainless 2.4G Wireless Keyboard, nano USB receiver, AAA Battery, welcome guide, our 24-month warranty and friendly customer service.