Product Review

D-157 Wireless Doorbell:

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.
1000 Feet 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 32 Chimes:
This unit lets you choose the best way to be notified when someone is at your door. In addition to your choice of 32 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).

Specifications:
Receiver Voltage: 110V AC
Battery: CR2302 3V Battery
Power consumption: <0。5W
Volume: 65-110dB
Range: 1000ft in an open area
Frequency: 433.92 MHz ± 200KHz
Operating Temp: -4°F~140°F (-20°C-55°C)

Package Includes:
1x Receiver
1x Transmitter
1x User Manual
Mounting hardware