Sonic Alert's new HomeAware system includes several new features such as smoke and carbon monoxide transmitters and a signaler for your smart phone. The base unit has two phone jacks available for VP, fax, or phone. An optional phone transmitter is available for those situations where it is not convenient to have your primary receiver set up next to your video phone or landline. The portable remote receiver can help keep you aware of your surroundings - no matter where you are in your home. The new Sonic Alert HomeAware system can communicate with the Original Sonic Alert transmitters and receivers via the Bridge Unit. The Original Sonic Alert transmitted through the home's electricity while the Sonic Alert HomeAware System uses radio frequency (proprietary D-RF Secure Technology) offering up to one thousand feet between a transmitter and the primary base. Additional HomeAware receivers extend the range another 1,000 feet which can provide the limitless range for your home or business.