Wow... just use a glorified Bluetooth speaker and you’re there! Put all the configuration in an app on your “real” phone and it’s barely a hardware project and

Wow... just use a glorified Bluetooth speaker and you’re there! Put all the configuration in an app on your “real” phone and it’s barely a hardware project and a contract programming job. If you really want to minimize distraction that’s fine. The Bluetooth accessory can even limit logins (through TFA) by time and number (length would be complicated).