I have both the EX71s and the MD33s. I got the EX71s from PCMALL for about $33 with free shipping. The price is now $32 plus shipping. I just got a pair of MD33s and I really like them. I listen to a lot of audio books and the clarity of the MD33s is very welcome. The only problem with the MD33s is the four pole design which necessitates the use of the 4 pole to 3 pole extension cord. But I found that the simple Radio Shack volume control cord (12 inch long) will convert the four pole to three pole.