HDL-MHB1010 Intelligent Hotel Door Bell Intelligent Hotel Door Bell, With Room/Apt/Office Number Back Lit, Capacitive Touch Technology, Elegant Crystal Glass Finish, Functions: (DND, Clean Room, and Pick Laundry indicators), Online update to house keeping, and Front office. Disable Bell if DND is active. Bus Enabled Network. Screw less Fixing Magnets. Parameters Model HDL-MHB1010 SKU 003943 Bus Power mA Width 105 mm Height 170 mm Depth 40 mm Weight 330 g Material CustomOne CustomTwo CustomThree CustomFour CustomFive Discount category A Price category 5.32-4 Out of stock in stock Out of stock You can buy these goods through registered HDL partner. Question to product