Household wireless doorbell, this small machine is actually a wireless doorbell, and it is not only exquisite in appearance, but also very intimate in function. No battery is needed when using, so plug and play is more convenient. At the same time, the sound is loud, indoor 30-meter transmission is not a problem, there is no radiation, and the power consumption can be ignored. With it, you no longer have to worry about not hearing the doorbell when cooking in the kitchen. It is not only a good doorbell, but also a great call for help for the elderly.