Dahua Technology ART-ARC3000H-03-GW2-868. Connectivity technology: Wired and Wireless, Wi-Fi standards: Wi-Fi 5 (802.11ac), Wi-Fi frequency: 2.4 GHz. Product colour: White, Control type: Buttons, Housing material: Acrylonitrile Butadiene Styrene (ABS), Polycarbonate (PC). Input voltage: 12 V, Battery technology: Lithium. Number of door/window sensors: 1 pc, Number of door sensors: 1 pc, Number of window sensors: 1 pc