The Verifact Model L-DT has two opposing built-in omni-directional, low impedance, electret condenser microphones with built-in preamp. It is enclosed in a sturdy ABS housing with a non-slip bottom for adherence to desktop or flat horizontal surface. Designed for interviews, speech therapy labs, or where ceiling or wall mounting is not practical. Model L-DT microphone is compatible with all Louroe base stations. Produces line level output.