The Sony ECM 88BPT is a miniature condenser, lavalier microphone with a unterminated "pig-tail" cable. The unterminated end enables users to attach custom connections for use with desired transmitters and power supplies. The capsule is 3.5 x 3.5 x 16.8mm, allowing natural-looking concealment on stage or camera. The electret condenser element uses a dual-diaphragm mechanism, resulting in high sensitivity.
The microphone provides a flat, wide frequency response (20Hz to 20kHz) resulting in a natural sound reproduction, capturing in great detail. The water resistant design assures durability from the elements as well as moisture caused by sweat in stage applications.