- 433MHz Wireless Smart Doorbell Welcome Intelligent Door Bell Button with Battery and SOS Button for Home Security Alarm System
- High-quality sound: the doorbell is equipped with a high-quality sound system, providing clear and thick sound quality, allowing you to hear every ring of the doorbell.
- Easy Installation: No need for professional personnel, just simple operation, you can complete the installation and setup of the doorbell.
- Long time standby: built-in high-capacity battery, long time standby, no need to charge frequently, more convenient to use.
