WHY: The metal boom of the microphone can conduct electricity from an exposed speaker wire or connector, posing a shock or burn hazard to the user.INCIDENTS: Nielsen-Kellerman has received reports of three incidents in which the users reported second-degree burns where the metal boom contacted their face. HOW MANY: About 7,500. FOR MORE: Contact Nielsen-Kellerman at 800-784-4221 Monday through Thursday from 9 a.m. to 5 p.m. EST, or visit the firm's website at http://www.nkhome.com/support . ____ PORTABLE GENERATORS DETAILS: Powermate Sx 5500 portable generators imported by Pramac America LLC of Kearney, Neb. and manufactured by Am Pride Chongqing Senci IMP & EXP Trade Co. of China; sold exclusively at Home Depot stores in northeast, mid-west and southeast United States from February through August 2012. The black portable generators with wheels have "Powermate 5500" printed on the side of it. The generators were sold under the model name Sx5500 and model number PM0125500, both of which are printed on a plate on the rear of the generators. WHY: The fuel filter on this generator allows gasoline to leak, posing a fire hazard. INCIDENTS: Pramac America has received 51 reports of fuel filter leakage. No fires or injuries have been reported. HOW MANY: About 7,700. FOR MORE: Contact: Pramac America LLC at 800-445-1805 Monday through Friday from 8 a.m. to 6 p.m. EST, or visit the firm's website at http://www.powermate.com .