One nice element as shown. This is the model that has noise cancellation by having a space in the back where ambient sound out of phase with front cancels out. If you want to make more like conventional, you can wrap electrical tape around the side and down to the brass to block off the back gap( add some glue if needed) Tested on a sound system has a nice vintage bluesy sound! Hi impedance, Measured 1000 ohms on an ohm meter.