Connect a Virtue Dye Membrane Switch to the back of your Ion grip frame. Allows you to have an on off and eye operation button on the back of your Ion grip frame just like a DM5 or Intimidator! Virtue board and membrane required. To attach a DM4 5 style membrane to your Ion you need the following: 1. Virtue Ion Board2. Virtue Ion Board Membrane Adatper3. Virtue DM5 Membrane Swtich