This application is used to configure your Mobilinkd Battery-powered Bluetooth TNC. Adjust the transmit volume level. Monitor the receive volume level. Set KISS and other TNC options. And update the device's firmware. For more information about the Mobilinkd TNC, please visit our website at http://www.mobilinkd.com. This is compatible with both the TNC1 and the TNC2. * If you have previously installed a version of this app from our Download site, you may need to first uninstall the app before Google Play will install the new version.