Up to 92-key. The appearance of the human body engineering design, perfect larger touchpad, unique double mouse button. Innovative full-screen rolling function, perfect experience (Fn+Touchpad) use dry cell, concise and easy, universal, using environmental protection material, all lead-free technology, in line with ROHS standard innovative intelligent technology of code, don't take the receiver is missing, after all hotkeys unique design, use more carefree. Product Parameter: 92-key(74 standard keys + 18 Media Keys). Built-in 2.4 G wireless receiver, DPI can be adjusted. Working distance-10m. Working voltage: 3.3V. Current: < 50mA. Sleep current: < 1mA.