Designed for recording interviews the OLM-20 Dual Omnidirectional Lavalier Microphone from Polsen is comprised of two of the well-received OLM-10 omnidirectional lavalier microphones. It terminates in a single 1/8 stereo connector with each microphone recording to a discrete channel on your DSLR camcorder or audio recorder with a microphone input.,Designed for recording interviews the OLM-20 Dual Omnidirectional Lavalier Microphone from Polsen