Attractive appearance, with high sensitivity design to record voice chat, video conferencing, voice recording, online karaoke clip-on design, These are very easy to clip it to your shirt, collar or placed in small pockets This product is compatible in accordance with standard headset jacks 7RRS, CTIA equipment. This device is also consistent with the TRRS.Comes with a draw string lavalier microphone bag. The cable length is approximately. 1 meter long. Impedance of 2.2K Ohm with a sensitivity of -52dB 5dB, The frequency range is 30Hz~15000Hz.