uxcell Meccanixity US Plug Advanced Security 52 Chimes Digital Portable Plugin Waterproof Wireless Doorbell Door Bell Chime 1 Receiver 2 Remote Push Button Transmitters SUPER FAR REMOTE RANGE: It can reach a distance of up to 300m/approx 1000ft when there are no obstruction. You can install the doorbell in kitchen, living-room, bedroom etc 52 CHIMES AND MULTI-LEVELS VOLUME: 52 chimes provided for you, pick one you like from modern to old fashioned chimes.Multi-levels of volume loud enough and low enough so it will not disturb any sleeping children. DURABLE MATERIAL: ABS flame retardant shell material, green environmental protection. SMART CODE: Using learning code to prevent interference from other wireless transmitters. FULL 12 MONTH WARRANTY: Every meccanixity doorbell comes with an 12 month no question asked guarantee to ensure customer satisfaction, our top priority