I've been using the D5 and PVM46 for backup vocal mics for the past couple months and have never had onstage feedback when using them. Was very happy with each but got an opportunity for all matching onstage mic's, so these can go. I'll guarantee the AKG and PVM46 to be excellent quality and sound and perform as brand new. AKG - D5 Perfect Condition - Supercardioid pattern and very resistant to feedback onstage. Very clear and precise. I liked using this on lower full voices. $45 shipped Peavey PVM46 Perfect Condition - Hypercardioid pattern and very resistant to feedback onstage. A meatier mic with a heavier low end. Very clear high end and balanced overall. This worked well to thicken up a thinner voice. $45 shipped The Shure's an 'it's been used a lot and still works' situation. This mic's been going around to gigs but was not being used because I prefer Super or Hypercardioid pattern mics for loud noisy bar gigs. Shure SM58 Well gigged and some pitting. Mesh screen has one flat spot on it. $45 shipped. Only shipping inside of U.S.