Offers eight (8) different low-cost, open-voice (loud speaking) apartment (multi-family) intercom kits. These are our lowest cost open-voice (loud speaking) apartment intercom systems for 1,2,3,4,5,6,7 and 8 family buildings. Choose from 1, 2, 3, 4, 5, 6, 7, or 8 family models, all with surface mount stations and surface door entry panel, for easy installation. All kits include basic intercom connecting cable and all other components necessary for a complete working apartment intercom system. If door release is required, simply add a 16vac electric door opener (and additional wiring), as needed. System can be expanded in the future, if required.