product Maico Diagnostics, Eden Prairie, Minn, features the MI 24 tympanometer, which offers an optional high-probe tone feature with automatic impedance testing, as well as ipsi and contra reflex testing. The lightweight, portable model includes a backlit LCD screen and an internal thermal printer, making it a strong performer in its price category. Visit Maico during AAA at booth #1019. (888) 941-4201;