[Sin pilas] Timbre inalámbrico exterior resistente al agua con receptor enchufable - 45 tonos de llamada - Ajuste de volumen de 4 niveles - Para hogares, oficinas y hoteles

♬ Battery-Free: Our wireless doorbell transmitter uses unique technology. Pressing the button converts kinetic energy into an electrical signal, wirelessly triggering the doorbell. No more battery worries! More convenient, energy-efficient, and practical than traditional doorbells. ♬ 45 Beautiful Doorbell Melodies: Offers 45 classic doorbell melodies with adjustable volume, providing multiple options to meet your different needs. Four volume levels, from 0 to 90 decibels, are loud enough for even the elderly to hear; enjoy a pleasant melody every time someone rings the doorbell. LED indicators provide visual cues (very useful for those with hearing impairments). ♬ IP44 Waterproof: The IP44-rated transmitter design is made of non-toxic, safe, and recyclable ABS material, allowing operation in temperatures ranging from -20°C to 65°C and withstanding various harsh weather conditions, including sunlight, rain, snow, and frost. Widely used in homes, offices, hotels, villas, hospitals, studies, apartments, schools, and other suitable locations. ♬ Ultra-long wireless transmission distance: The wireless transmission distance can reach up to 150 meters/500 feet, and it comes with a plug-in receiver that will not interfere with other devices in your home or your neighbors' homes; even if you are several rooms away or on different floors, you can ensure that you will not miss any visitors. Ideal for large residences, warehouses, offices, and other locations.