Introducing our exceptional product, the Direct-Call Video Doorphone Outdoor Unit Model JSL27! As a factory specializing in innovative security solutions, we offer this top-notch device to ensure your safety and convenience. With a user-friendly design and cutting-edge technology, our JSL27 allows you to conveniently communicate with visitors and enhance your home security. It provides clear video and audio transmission, allowing you to see and speak with visitors from the comfort of your fingertips. Trust our factory-made JSL27 for an unparalleled level of protection and peace of mind!