Summary: I bought this product to use with a digital recorder for recording Church Conferences to keep on record. I set it in the center of the Church Council members and it picks up every person extremely well. It is a small unit with big performance, which is not unusual for Audio-Technica products. Haven't used it long enough to determine battery life though.
Excerpt: I bought this to record therapy sessions with clients. Not only does it cut out when replaying a recorded session, the construction is so poor that the battery cover will not stay attached and the battery keeps falling out.
Excerpt: Purchased this for use with an Olympus DM-620 Voice Recorder. Could not get it working even after trouble shooting, checking the battery, switch etc. Staples credited my account and ordered a replacement unit that works very well. The DM-620 built in microphones work well but using this conference unit places the microphone in a central position and enables the recorder to be at the operators seat position for easy control.