of this product with your model. DurableWith power , you can extend the battery operating time and reduce power consumption. Keeping your Video Doorbell running can also help extend battery life and reduce power consumption. (Remark: Before using this product, you need to remove the battery from the doorbell ). Easy installation Go up through the door opening and just connect the cable to your ring. Installation and configuration can be done in minutes. No existing doorbell or new wiring is required and can be installed on any door. The cable length of this product is 5 m. CompatibilityCompatible with Nest Hello doorbell, Arlo video doorbell, Eufy video doorbell, Simplisafe video doorbell, Zmodo Smart Greet Wi-Fi video doorbell and other doorbells need 18V adapter. High performance materialsThis product is flexible in design and looks smooth and beautiful. The outer case is flame retardant and fall-proof PC-ABC, which is harmless to human body. The power supply is kept in anti-fall matte design. Strong resistance to gloss, antioxidants and humidity. Simple construction and long life This product is manufactured in strict accordance with the standard, and the layered winding is completely insulated to make the product more safer and more durable. See more details.