When you need the MAC addresses of the unit follow the next few steps.
1. Make sure that Laser Nova is switched ON and the home screen is displayed.
2. Press the middle button under the CTOUCH logo (the screen will look as below)
3. Press the android Menu button
4. The unit will take you in the Android Menu settings.
5. Go down to the last option About
6. Enter in the About menu and select the first menu Status. Enter in that menu, and you will see all info related to MAC addresses of the unit.