Wireless intercom stations with the ability to initiate and receive two-way intercom calls from a master base station or other two-way intercom stations. When used as part of an overhead PA system, these intercom stations can be used for live voice announcements or playback of pre-recorded messages. In addition, these wireless intercom stations can be used in break bell applications to play accurate, schedule based audio alerts and tones. When equipped with the battery backup option, these wireless intercom stations will provide full functionality during power outage situations. Installation or relocation of these intercom stations is very simple since all that’s needed is an AC or POE power source.