Shure SLX4 SLX1 Dual Wireless Lavalier Outfit 518-542A Shure SLX4 SLX1 Dual Wireless Lavalier Outfit 518 542 in Very Good condition! At Evolution Music, we attempt to highlight cosmetic defects (if any) by picturing every angle of every piece of gear so you know exactly what you are getting. We always picture any and all accessories too. What you see is what you will get so please check out the pictures! Everything we sell has been tested and is fully functional unless otherwise noted. We have a 5 star