The Yale Sync Key Fob can be used to arm, disarm or emergency trigger your Yale Sync Smart Home Alarm up to 200m away from the smart hub. The Key Fob is easy to pair with the Yale Sync Smart Home Alarm, allowing you to customise your system with up to 40 accessories. When paired with the Sync Smart Home alarm, can be integrated with lights and voice assistants including Amazon Alexa and Philips Hue to enhance your security system. The Yale key fob is wireless and easy to pair with your home alarm system, allowing you to extend your system to tailor it to your individual needs. This accessory can be used to arm, disarm or emergency trigger your alarm system. This item is open box stock, has had the battery tab removed and has a few scratches to the back of the fob.