Dimensions (Overall): 1.97 inches (L), 3.94 inches (H) x 3.74 inches (W) x 3.74 inches (D) Weight: .68 pounds Assembly Details: No Assembly Required Compatible With: Ring Products Maximum Operating Range: 5 feet Package Quantity: 1 Battery: No Battery Used Warranty: 90 Day Limited Warranty. To obtain a copy of the manufacturer's or supplier's warranty for this item prior to purchasing the item, • ✔ FORM & FUNCTION - Forgo the hassle of changing your battery by directly connecting your Ring Video Doorbell to the power adapter. The 1.5m long cable can be set up in minutes. (output of 18V/500mA) • ✔ CONTINUOUS CHARGING - You can now let your video doorbell operate continuously without the need to remove it to change its battery. This enables uninterrupted operation and On-demand viewing. • ✔ NO BATTERY DRAINAGE - our power Adapter allows you to keep your ring doorbell always juiced up. No more downtime and interruptions Due to empty batteries. • ✔ SATISFACTION GUARANTEED - If any of our products fail to meet your expectations, please get in touch with US and we'll try to resolve the issue. If unresolved, you'll get a refund or replacement. Get the most out of your Ring Video Doorbell with the Wasserstein power adapter. No more disappointing battery performance. Just connect your smart doorbell to a power outlet using the adapter and never worry about charging batteries, compromising on functionality, or losing surveillance ever again. No more having to take your Doorbell down to charge. No more interrupted operation when you’re away. Our adapter for Ring smart doorbells keeps your device constantly powered offering you to continuously operate without interruption. Avoid all the drawbacks of a rechargeable battery with Wasserstein.