Rotating disk design.
Unique light pipe key design.
Standard Voice Module.
It can provide DES encryption module.

1.  Rotating disk design. Using the disk can rotate freely to change the keys fixed position, so that those who can not be peeping through the key bits to determine your password.

 2.  Unique light pipe key design. The symbols on the keys only can be saw in front of pin pad, it is effective to prevent the peeping.

 3.  Products appearance is simple and generous.

 4.  Key fonts are clear and hand feel confortable. Never wear and full itinerary.

 5.  It can provide interfaces of RS232, TTL, USB, or imitation AT / XT keyboard format and so on.

 6.  Standard Voice Module.

 7.  It can provide DES encryption module.