ApexGear Self-Powered Doorbell, Built-In Thermometer, 38 Chimes, 4 Volume Levels, No Battery Waterproof Home Use

・Self-Generating Push Button, Zero Battery Consumption Forever: The outdoor doorbell transmitter adopts mechanical kinetic energy power generation. Pressing the button converts pressure into electric energy to send wireless signals, requiring no batteries for lifelong use, eco-friendly and eliminating repeated battery replacement costs.

・IP Waterproof Exterior For All-Season Outdoor Installation: The outer casing of the push button is crafted with waterproof structure, resisting rain, dust and daily weather erosion. It can be mounted permanently on outdoor front doors under all climate conditions without being damaged by rain or snow.

・Indoor Chime With Real-Time Room Temperature Digital Display: The plug-in indoor receiver features a cute bear-shaped LED screen that continuously shows indoor ambient temperature in Celsius/Fahrenheit. It works as a household thermometer besides doorbell, ideal for families with babies and elderly members.

・38 Selectable Ringtones + 4 Adjustable Volume Gears: 38 assorted doorbell melodies are available for free switching, matched with 4 volume levels ranging from silent night mode to loud daytime volume. Users can customize tones and loudness to fit babies’ sleep, seniors’ hearing needs and daily living scenarios perfectly.

・Tool-Free Easy Installation & Stable Through-Wall Wireless Signal: No wiring or drilling is needed. Stick the outdoor unit with adhesive tape and plug the indoor chime into wall sockets to finish pairing. Reliable RF signal penetrates interior walls well, ensuring timely doorbell alerts in every room of your house.