Summary: This ear piece is great. I use it mostly for phone call recording, but it can also be used as a microphone not in the ear. Though the phone recording is louder. Great price for a great piece of equipment.
Excerpt: I bought these to work with my Philips DVT5500 Digital Voice Recorder. I use them for emergency situations when I'm away from home or office and am either reduced to using a pay phone, a hotel phone, etc. where I can't use my regular gear to hook up my recorder to the phone system.
Pros: Clear Sound, Compact, Easy To Use, Lightweight, Versatile