1. Keyboard interface: USB2. Mouse interface: USB3. Working method: photoelectric4. Size: keyboard 28.4x13.2x0.5cm, mouse 11.3x5.7x2.3cm5. Good battery life, energy saving and power saving6. Exquisite and compact, easy to use7. Ergonomic structure design8. High-precision engine, unbounded9. Quiet micro-motion, effectively reduce noise10. Comfortable hand feel, selected X frame makes the keyboard more stressed, more uniform and quieter

http://olla.gr/usb-external-notebook-desktop-computer-universal-mini-wireless-keyboard-mouse-style-keyboard-and-mouse-set-black/