Fiche Technique TECKNE Waterproof Wireless Doorbell with 3 Receivers, 60 Melodies and 5 Adjustable Volumes, 400 m Range, IP65 Waterproof, Flashing Blue LED, for Home and Hotel – White au Maroc 【Three Receivers】TECKNET wireless doorbell kit includes three receivers and one transmitter. You can place the receivers in multiple locations…