Ezviz A1 Wireless Alarm Hub is at the centre of your smart home alarm system. Linking to various detectors around your home, providing complete protection to your home. Ezviz A1 Alarm Hub also includes K2 Remote Control. Complete wireless (wi-fi) alarm solution. Wireless (868mhz) range of up to 100m from detectors to a1 hub. Integrate with ezviz HD security cameras. Ifttt compatible, works with alexa. Easy to setup, install and configure. Designed for DIY installation. Panic button feature. Fully expandable system – up to 32 accessories/zones. Pack includes: (not included), . Size H1.7, W10, D12.1cm. Weight 0.5g.