| Smart doorbells can be used in homes, villas, office buildings, hotels, buildings, dormitories, factories, etc. The doorbell is installed at the door of the home, and the signal from the wireless doorbell can be received in the home, and the bell will be sent to remind someone to visit. Features: 1. Long-distance wireless reception: The doorbell receiver can be directly plugged into the power supply, and the wireless reception is accessible within a range of 150M, and the transmission signal is stable, which can meet the daily use of the home doorbell. 2. Press to generate electricity: The doorbell transmitter supports press to generate electricity, no battery is required, and the service | |