Supplementary wall-mounted electronic ringer, power supply from telephone line

Additional electronic telephone ringtone ideal for installation in noisy or large environments, thanks to its high acoustic performance (greater than 100DB at 1 m.) and the ability to customize both the volume and the type of ring, thanks to the 3 selectable sound frequencies.
The connection of the device to the telephone line or to the input for the analogue branch of the PABX can be made through an RJ11 plug or terminals. The device requires installation with wall fixing or on 502 or higher flush-mounted boxes, and does not require an accessory for power supply, as it is powered by the telephone line or by the PABX extension input.