Rentals United Rentals United is a cloud-based channel management solution to distribute listings across more than 60 booking channels worldwide. Protect group is Master VR LLC strategic Partner since August 2023 Main Features APP Controlled Acess You can open the door simply pressing the booking button OPEN at the app. Doors can be remotely opened by the APP Platforms Compatible Iphone Android Alexa Google Siri Cylinder´s Type Cylinder is of European, Nordic, or Swiss-type