Weather-resistant wireless portable intercom that provides convenient and expandable communication inside and outside your Weather-resistant for use indoors or outdoors1 Button Simplicity and Easy to use - installs in minutes
- 1,000 foot range with no wires or power connection required
- Crystal clear, secure 900MHz digital communication
- Fully secure connection
- Expansion with additional units (up to 64 per network) can enhance your home's communication to multiple locations
- 2-year battery life; requires four AA batteries per unit (not included)
- 1-year warranty
Compatible with other Wireless Portable 4-Channel with VOX Gray Intercoms, Push-to-Talk Black Intercoms, and Hands-free Chime with 30 sec Timeout White Intercoms.
- Black model offers Push-to-Talk (Hold down button or ability switch while speaking.
- Also great with Muscle Sensor Switch in latching mode.)
- White model offers Doorbell-like Chime with Hands-Free 30 second Timeout that keeps the channel open while speaking without a need to hold down the button, important for Sip-n-Puff users.
add additional content from http://www.intercomsonline.com/900MHz-Outdoor-Wireless-Intercom-p/uws-nt.htm