TeckNet UL-3880 Wireless Doorbell with 2 Plug-in Receivers: The UL-3880 Plug-in Wireless Door Chime and Push Button makes it easy to replace your home's generic doorbell ring with a chime tune that better fits your individual style.
Plugs into Any Standard Wall Outlet: Easy to install and operate, it plugs into any standard wall outlet. Use it for front, side, or back doors to gain security and peace of mind.
4 Volume Levels: You'll be happy to know that you have the option of turning the chime down or up--a great option for different environment. (0dB-90dB), mute level design, very convenient for using.
1000 Feet / 280m Operating Range: Thanks to its industry-leading 1000-feet working range, you'll be sure never to miss a visitor's arrival no matter where you are.
Choice of 38 Chimes: This unit lets you choose the best way to be notified when someone is at your door. In addition to your choice of 38 selectable chime tunes.
Flashing Light Indicator: The flashing light indicator that gives you a visual form of notification(an excellent feature for the hearing impaired).
Dependable Operating Range: The UL-3880 has 64,000 available codes to prevent interference from other users.