Description: 
Volume Controls are constructed with the help of 100V transformers. This control switch comes with 11 volume steps (10 regulator steps and 1-zero position) and besides this, there is an E/ M relay (24 V DC), which makes emergency announcements possible even if control is at position 0. Miracle Electronic Devices, a leading manufacturer and supplier of voltage control devices introduces the volume control audio attenuator.
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