LiftMaster 833-1LM Wireless Portable Intercom – Add-on Intercom

A single intercom that provides convenient and expandable communication for your home. Up to 1,000 foot range – no power connection required. Crystal clear, secure 900MHz digital communication. High-tech design and modern look blends in with today’s tech-friendly, contemporary homes. Advanced features include voice activation and monitor mode. Broadcast to all channels simultaneously or speak to one party with Secured Link Single or multi-channel communication. Expandable with additional units (up to 12 per network) to enhance your home’s communication to multiple locations. Easy to use – installs in minutes 2-year battery life; requires four AA batteries per unit (not included) 1-year warranty. Compatible with the following LiftMaster® wireless intercoms: models 833-2LM, 831-2LM