GTMax 3 White 3.5mm Stereo Headset Handsfree Soft Gel Earbud with Microphone for Sprint HTC Evo 4G
I've had a lot of trouble with Bluetooth so I went back to a wired earpiece.  Stereo so I could listen to music also.  This product is cheap and came in a set of three.  Good thing , too since the first pair broke almost immediately.  The second lost the ability for me to be heard and the third seems to work fine.