LONG RANGE AND STRONG SIGNAL: The range between transmitter and receiver is up to 300 meters. The signal can penetrate obstacles very well. Whether you are cooking in the kitchen or weeding in the garden, this doorbell will notify you in time, you will never miss your visitors. 58 RINGTONES TO CHOOSE: The wireless doorbell has 58 ringtones different to meet your different needs. 4 adjustable volume levels with a maximum volume of 100 dB. Loud enough to hear the chime clearly from anywhere in your home. IP44 WATERPROOF: Thanks to IP44 waterproof technology, the waterproof doorbell is also suitable for outdoor use. It works perfectly in rain, snow or sub-zero temperatures. Withstands various harsh weather conditions. FLASHING LED: When someone presses the blue LED will flash. If the wireless doorbell rings and you will be notified by the flashing LED light in the apartment if you are wearing headphones or earplugs. EASY INSTALLATION: Simply plug the wireless doorbell into an outlet and secure the doorbell button to the exterior wall or door frame using the supplied screws or adhesive pad. No annoying cables.