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