Wireless doorbell with LED, temperature display, waterproof electronic doorbell kit, with 2 plug-in receivers, 150m range, 4 volume levels, 38

No battery required: Our wireless doorbell transmitter uses unique PUSH-RF technology. When you press the button, kinetic energy is converted into an electrical signal, and the doorbell rings wirelessly. You no longer have to worry about batteries. More convenient, energy-efficient, and practical than the old model. IP44 waterproof and temperature display: The transmitter features an IP44 waterproof design, made of non-toxic, safe, and recyclable ABS material. It operates in temperatures from -20°C to 65°C and can withstand various adverse weather conditions. The LED temperature display shows the temperature in Celsius/Fahrenheit when the receiver is not ringing and can be used as an indoor thermometer. 38 beautiful ringtones and melodies: 38 classic melodies are available, with adjustable volume and a rich variety to meet your different needs. The volume is adjustable to 4 levels, from 0 dB to 100 dB, so even the elderly can hear it clearly. Every time someone rings the doorbell, you'll hear a pleasant melody. An LED indicator provides visual notification (a very useful feature for the hearing impaired). Ultra-long wireless range: The wireless range is up to 150 meters/500 feet, and the two built-in plug-in receivers won't interfere with other devices in your home or your neighbors' homes. This way, you won't miss any visitors, even if you're across the ocean or on another floor. Perfect for homes, offices, hotels, villas, hospitals, office buildings, apartments, schools, and other suitable spaces. User-friendly: Convenient and user-friendly design for a better user experience. Simply tear off the protective film from the transmitter, stick it to the door, and plug the receiver into an outlet. Key Specifications: Complete doorbell set, including 1 button and 2 receivers; Interference-free digital signal, signal range up to 150 meters; 38 melodies; Volume up to 100 dB, adjustable to 4 levels; Integrated flashing LED in the receiver to indicate when the doorbell is ringing; IP44 waterproof; Compact design, can be installed on any door frame; Includes mounting hardware: screws and adhesive tape