Campainha sem fio autoalimentada com 38 toques, sem necessidade de bateria, longo alcance de 433 MHz, receptor plug-in (preto/branco, 1 para 1/1 para 2/2 para 1)

​​The Ultimate Hassle-Free Wireless Doorbell – No Batteries Needed!​​ The ​​KOSSTON Self-Powered Wireless Doorbell​​ is designed for ​​convenience, reliability, and eco-friendliness​​. With ​​38 chime options​​ and ​​long-range 433MHz signal​​, it ensures you never miss a visitor again! ​​Why Choose KOSSTON?​​ ​​Self-Powered Technology​​ – Press the button to generate power—no batteries required! ​​433MHz Long-Range Signal​​ – Strong penetration through walls, ideal for large homes and multi-story buildings. ​​38 Customizable Chimes​​ – Choose from classic tones to modern melodies for a personalized experience. ​​Global Voltage Compatibility (100-240V AC)​​ – Works seamlessly in the US, EU, UK, and beyond. ​​Versatile Use​​ – Perfect for homes, hotels, offices, and elderly care. ​​Multiple Configurations Available:​​ ✔ ​​Plug Options​​ – US (standard), EU, UK ✔ ​​Color Choices​​ – Sleek black or elegant white ✔ ​​Setup Modes​​ – 1-to-1, 1-to-2, or 2-to-1 for flexible installation ​​Perfect For:​​ ​​Homeowners​​ – Easy installation, no wiring needed. ​​Renters​​ – Adhesive mounting, no damage to walls. ​​Businesses​​ – Hotels, shops, and offices benefit from reliable alerts. ​​Caregivers​​ – Loud, clear chimes for elderly or patient monitoring. ​​Upgrade Your Space Today!​​ Experience the ​​convenience and reliability​​ of KOSSTON’s self-powered doorbell. ​​Order now and enjoy a smarter home!​