EASY INSTALLATION: Thanks to its "self-adhesive" system, the connected doorbell requires no tools or wiring. You can install it wherever you want. Remove the sticker behind the doorbell and attach it to a wall. Installation will only take 5 minutes. CONNECTED CAMERA: With its Full HD camera and wide-angle vision, you can speak, hear, and see your visitors. Its infrared option will allow you to monitor the comings and goings in front of your door day and night. The app on your smartphone will notify you of each visit in your absence. LONG BATTERY LIFE: The battery lasts 3 to 6 months without charging, depending on use. The charging time required is only 1.5 hours. The lithium-ion battery has a power of 800 mAh. Charging is done through a USB interface. 38 melodies available. CONNECTIVITY: The device has Wi-Fi support. You can easily connect to it via the Smart Home app. The connection between the chime and the speaker is wireless. The devices can connect over long distances. Only