Brand: Fanvil, Model: EX31, Color: Black, Product Type: IP Phone Accessories, Frame Panel: 280*170*6mm, Brick: 243*147*68mm, Frame Panel: Aluminum alloy, Brick Box: ABS, Frame Panel: 389.5g, Brick Box: 268.9g, Screw: 36.7g, Warranty: 01 Year Limited Warranty Get an official flush mounting kit for Fanvil i18S, i23S, and i31S SIP Intercoms. This flush mount kit contains an aluminum alloy frame panel designed to seamlessly match the Fanvil intercom, as well as a brick box and mounting hardware.