The Vevor wireless doorbell kit delivers reliable visitor alerts with a range up to 1000' and customizable operation for home, office, classroom, and similar spaces. It offers 48 ringtones, 5 adjustable volume levels, and a silent LED flash mode for quieter environments. The IP54-rated transmitter is designed to handle dust and water exposure for dependable indoor or outdoor use. Memory function helps retain your saved ringtone and volume settings after power interruptions. The kit includes two transmitters and one receiver for flexible placement and coverage.