Check out the WGA TR-2000 series headset/mike boom combo. The earphones are 8 ohm ( I know, TenTec recommends 16-32 for the Orion), but I've used 'em and they are great. Also, the mike is similar to Heil's HC-4 apparently (I have read) in sound reproduction on the air. Check 'em out...they advertise in QST. 73's Joe, KX4JR