Introducing our wireless doorbell with a built-in surveillance camera and Wi-Fi connectivity. This doorbell allows you to receive real-time video and voice calls on your mobile phone when visitors arrive. The wireless doorbell supports up to 9 connected users, with 3 users able to view the screen simultaneously. Additionally, one user can communicate with the doorbell at the same time. Feel secure with the doorbell's two infrared lights and 3-meter night vision, providing a clear image even in darkness for day and night protection. The doorbell also features AI detection and memory functions, capable of detecting and storing visitor information even when you're away. Its recurring cloud storage ensures you never miss important details. With a built-in 800 mAh battery and USB charger, the doorbell is easy to detach and use. You won't have to worry about sudden power outages, making it even more convenient. 100% Satisfaction Guarantee: Your satisfaction is our top priority. If you encounter any product issues after receiving your order, such as damage or incorrect quantity, please contact the seller immediately. We'll do our best to provide satisfactory customer service.