Low priced, sensitive, high impedance microphone has frequency response of 70 to 8000Hz; -50dB sensitivity. It is supplied with a lapel clip and a 0.9m shielded cable which terminates in a molded 3.2mm diameter mini phone plug. Microphone is only 38mm in diameter by 13mm thick. We suggest our WLS-31121-60A BNC-Alligator clip adapter cable for connecting to your oscilloscope