Advanced dynamic microphone core and cardioid characteristic reject background noise and feedback, so you can have a crazy party with friends at home 50Hz to 15KHz frequency response for brilliant and transparent sound, it is a perfect microphone for party in holidays Unidirectional element makes your voice sound great Excellent reproduction of voice ensures your exquisite sound Just plug and play, no extra gear needed No batteries required Easy operation: on / off switch to control the microphone Sensitivity: -36dB + / – 3dB Output impedance: 2.2K ohm Max.SPL: 136dB SNR: over 60dB Length of cable: about 3.5m Connector: 6.35mm connector