1. Built-in light-sensing trackball allows users to easily operate the computer without a mouse.
2. Using laser engraving technology, the character HD wear-resistant does not fade, clear and beautiful, high button life.
3. Concave keycap, key distance anti-error design, short keystroke, quick rebound, comfortable and non-slip.
4. There are multiple drainage holes on the back of the keyboard to effectively discharge liquid and splash.
5. Made of ABS material, it is sturdy and durable.

Specification:
1. Product size: 360x130x25mm.
2. Trackball size: 360x130x25mm.
3. System requirements: Compatible with Windows XP, Vista, 7, 8, 10.
4. Operating temperature: 0 to 50 degrees Celsius.
5. Storage temperature: -20 to 60 degrees Celsius.
6. Operating humidity: 10% to 95% RH.
7. Weight: 0.41kg.