Sonet Extension Kit (Add-On Emitters for Larger Offices)Sonet Extension Kit (Add On Emitters for Larger Offices) Expand the coverage of your Sonet sound masking system. This extension kit adds additional emitters to increase the area of sound masking coverage. Its ideal for larger private offices or spaces where the standard system does not fully cover the listening area. What It Does Adds additional sound masking emitters to your existing Sonet system Extends coverage into larger offices Maintains