link 1.0 Djem Guerreru Inc. https://www.djemguerreru.com 21600 JOITO's https://www.joitos.com https://cdn.joitos.com/GENERAL/10/101/1010/10103609.V0.jpg 400 250 https://www.joitos.com/item/25663573/Signal%2DLevel%2DControl - Bogen speaker signal level control- Remotely control the volume of up to 150 self-amplified speakers- Rugged and attractive stainless steel plate with engraved lettering- Mounts in a single gang electrical box- Easy and secure terminal strip connections- Passive (requires no DC power)- BGSLC 21.70 USD 6 Electronics & computer--Phone & telecom--Other