[No Batteries Required] Wireless Doorbell with LED Temperature, Waterproof Door Bell Electronic Chime Kit with 2 Plug-in Receivers, 150M Range, 38 Melodies at 4 Volume Levels

General descriptionNo batteries are required for this innovative wireless doorbell, which utilizes unique PUSH-RF technology to convert kinetic energy into an electrical signal, allowing it to ring without the need for batteries. This energy-saving and practical solution eliminates the hassle of changing batteries. The doorbell features an IP44 waterproof design, ensuring durability in various weather conditions, and includes a LED temperature display that functions as an indoor thermometer.Technical specificationsWireless range: 150M/500FTOperating temperature: -20℃ to 65℃Volume levels: 4 adjustable levels from 0dB to 100dBMelodies: 38 classic chimesInstallationSimply tear off the film on the transmitter and stick it next to your door.Plug the receivers into power outlets.UsageIdeal for various settings including home, office, hotel, villa, hospital, study, apartment, and school.LED indicator provides a visual notification, beneficial for the hearing impaired.