Timbre inteligente inalámbrico con pantalla de 4" cámara visual bidireccional intercomunicador PIR bidireccional
【Easy Installation & Low Power Consumption】: The doorbell is wireless and easy to install. 1x Outdoor Doorbell. Wireless Distance: Open 50m/164ft, other 15m/49.21ft. Visual Angle: 80 degrees. 1x Indoor Screen.