Self generating doorbell AC Plug-in Digital

Press the button, super learning code can freely learn to match, can be unlimited matching receiver.The receiver is a distance of 300 meters (in an opening area), which may be affected by the environment and obstacles.Automatically save the selected ringtone after power off.Flexible design, convenient installation, no wires, save money and labor, and move freely.Built-in stereo speaker, especially suitable for office buildings, houses, factories, tourism and other places.Press the button, super learning code can freely learn to match, can be unlimited matching receiver.The receiver is a distance of 300 meters (in an opening area), which may be affected by the environment and obstacles.Automatically save the selected ringtone after power off.Flexible design, convenient installation, no wires, save money and labor, and move freely.Built-in stereo speaker, especially suitable for office buildings, houses, factories, tourism and other places.The ringtone and volume can be adjusted to meet your original needs. No longer have to worry about not being able to hear the sound or hearing the sound too loud.

• Press the button, super learning code can freely learn to match, can be unlimited matching receiver.
• The receiver is a distance of 300 meters (in an opening area), which may be affected by the environment and obstacles.
• Automatically save the selected ringtone after power off.
• Flexible design, convenient installation, no wires, save money and labor, and move freely.
• Built-in stereo speaker, especially suitable for office buildings, houses, factories, tourism and other places.
• When a visitor presses the doorbell, your phone will receive a notification (you can see, hear, and talk to anyone at the door, and you can even remotely unlock it through the app from anywhere.