Long Operating RangeThis waterproof wireless doorbell doorbell operation up to 1000ft/300m in open area allows you to hear the ringtone and answer the door in time ( the receiver signal depends on the environment). Whether you're busy a few rooms away or on another floor, or in the kitchen, you'll always be easily informed when someone calls from outside, ensuring you never miss a visitor < p>58 Beautiful Melodies and Adjustable VolumeThe wireless doorbell offers a wide choice of 58 chimes for your personal taste! 4 volume levels ranging from 20dB to 80dB to meet your needs for different occasions. Flashing with audio alert indicators, easy to notice by hearing impaired people Flashing LED Light The wireless transmitter and receiver will flash when the button on the transmitter is pressed. The blue light alerts you, even if you are wearing a headset or earplugs Long Life and VersatilityOur waterproof wireless chime has a power-off memory function for sustainable use of energy. The doorbell material is extremely durable and can withstand over 100,000 knocks. Wireless doorbells are available for homes, apartments, classrooms, offices, villas, etc. You can use it as needed Waterproof and Easy to InstallThe wireless doorbell transmitter is waterproof to IP55 and can be used outdoors in rain or snow. Installing the doorbell is very simple, you only need double-sided tape or screws for quick installation