WH-706 WH-712 is an elegant and compact volume controller with 24V override function. It’s compatible with DSPPA wall and ceiling speakers which have 100V line matching transformers and can be connected to a speaker or group of speakers with power rating up to 120 Watts. There are 5 volume selectable positions on the panel. It’s your ideal option for installation of hotels, office cabins, showrooms, greenrooms, etc.