Scenario: We have around 20-30 people meeting in a normal house living room and we would like to record the discussions. So we would need a microphone that can be placed in the center and that can record voices of people 15-20 feet away - more like being able to record all the background noises. We tried 2 microphones till now (pretty much we just chose some random ones from Walmart) and the problem is that they do not record voices of people who are not withing 5 ft or so of the mic. We are looking for something under $100 if possible and the quality is not that important, as long as the it can be understood what everyone says. So anyone has any recommendations for a mic that could fit our needs? Thank you in advance.