The SP-BMC-3 Sound Professionals Standard Binaural microphones are very small - about the size of a pencil eraser tip. The cable enters the rear of each mic capsule. The microphone cartridges are very rugged and are hand crafted to insure a lifetime of accurate recordings. The two microphone elements are each mounted in their own high quality brass shell. The microphone housings are covered in tough black rubber. Standard lapel-style clips are included that can be used to attach the microphones to a various mounting surface.