<ul><li>Working frequency of 315 MHz / 434 MHz</li><li>Classical simple and nice button</li><li>Remote control distance up to 100m</li><li>Thirty two melodies music for option</li><li>Enclosed a two-year lifespan battery, and energy-saving technology</li><li>Professional remote control technology, can be installed at any place, no wiring</li><li>Suitable for house, office, hotel, school, outdoor building, etc.</li><li>Easy to install &amp; easy to work</li></ul>

Door bell Wireless Remote Control, Waterproof Door Bells Digital With Wireless Remote Control Technology