The doorbell has a 166-degree wide-angle HD camera that provides clear, wide field of view. In addition, the supports passive infrared detection. Whether it is day or night, sunny or rainy, the camera can record clear images to ensure Your home monitoring is safe.^ Support mobile phone remote control, you can wake up the device within 1 second, when someone is at the door, it will push the alarm notification to the mobile phone, no matter where you are, you can keep abreast of the situation at home.^ The doorbell has a noise-reducing microphone for two-way voice calls. You can communicate with visiting guests without losing a visitor.Large-capacity storage space, Support TF card insertion, support up to 32G TF card. Can record long-term image content.^ 4G wifi connection, no need to use wire and cable, easy to install, easy to use and operate; doorbell with longer battery life, working time is more than 8 months, low power consumption Environmental protection and energy saving, long standby.^ This is the best choice for your family's safety, and when you use it, you will feel the joy of life. We guarantee the quality of the product, if you have any problem for our product, please contact us in advance, we will try our best to serve you.