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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