1. A big bright orange key that stands out, easily let you locate the laser key.

2. A raised bump on the key offers a clear signal to help you perceive the key orientation without thinking.

3. The silicone buttons are vulcanized and upgraded, more durable and not easy to damage.

4. Click the Tab Key to choose the hyperlink, then double click Tab Key to open hyperlink.

5. Long press the Tab Key to switch windows from current presentation page to different websites.

6. Press "+ "or "-" to adjust the multimedia volume according to your location and surroundings of place.