Wireless doorbell chime kit for homes, classrooms, offices, apartments, schools, villas, hotels, factories, hospitals, etc. 【 【55 Chimes & 5 Volume Levels】Choose from 55 different chimes and 5 volume levels (0-100 dB) to suit your preference and style. Whether you want a classic ding-dong or a fun tune, our waterproof outdoor wireless doorbells have you covered. 【LED indicator with mute mode】You don't want to be disturbed during a meeting or an afternoon nap? Simply activate the LED flash with mute mode - perfect for those who need peace and quiet or have sleeping children. 【IP55 Waterproof and Weatherproof】The Nestling wireless doorbell is designed to last thanks to its IP55 waterproof and weather-resistant construction. Don't worry about rain, snow or extreme temperatures - your waterproof outdoor wireless doorbell will still ring! 【Expandable Outdoor Wireless Doorbell System】Do you have multiple entry points? No problem! You can add several additional additional receivers to your