Visit is announcedThe visitors register with a pleasant single-tone doorbell. The Sygonix mechanical doorbell is surface-mounted using the supplied screws and wall plugs. The operating instructions are also included. For the operation a 8 - 12 V button, 4 x 1.5 V LR14 batteries or an external transformer with 8 - 12 V are required (not included in delivery).This text is machine translated.
