1、When using, first adjust the speaker or mixer volume control to minimum. Then connect the power. Turn on the power, slowly adjust the volume from small to large to avoid the impact of the horn. 2、Cover the microphone with your hand or bring the microphone close to the speaker may produce a howling sound. In this case, first turn down the volume, take it away from the speaker, try to make the microphone turn aside from speakers. 3、The sensitivity of the microphone is high, please not drop it from a height or give a strong impact. 4、When using the microphone unit, keep it in a cleaner place. Avoid storing or using it in places with excessive temperature and humidity, so as not to affect sensitivity and tone. 5、Excellent quality and durability. Professional condenser microphone. Adopt hard-wired circuit control and a gold-plated large diaphragm head with a heart-shaped pointer. High output and low noise. These features allow the microphone to capture the most subtle sound. Especially suitable for recording studios, recording studios, radio stations, stage performance recordings. Absolutely meet the requirements of broadcast recording and other occasions. Features: 1. When using, first adjust the speaker or mixer volume control to minimum. Then connect the  power. Turn on the power, slowly adjust the volume from small to large to avoid the impact of the horn. 2. Cover the microphone with your hand or bring the microphone close to the speaker may produce a howling sound. In this case, first turn down the volume, take it away from the speaker, try to make the microphone turn aside from speakers. 3. The sensitivity of the microphone is high, please not drop it from a height or give a strong impact. 4. When using the microphone unit, keep it in a cleaner place. Avoid storing or using it in places with excessive temperature and humidity, so as not to affect sensitivity and tone. 5. Excellent quality and durability. Specifications: Directivity: omnidirectional Frequency response: 20Hz-20kHz Sensitivity: -34dB ± 2dB (0dB-1V / Pa at 1kHz) Output impedance: 150Ω ± 30% (at 1kHz) Load impedance: ≥1000Ω Level noise level: 16dBA Maximum sound pressure level: 130dB (at 1kHz ≤ 1% T.H.D) Signal to noise ratio: 78dB Current consumption: 3mA Unit size: Approx. 46*150mm/ 1.81* 5.91in Package Size: Approx. 41.7*24* 7.2cm/ 16.42* 9.45* 2.83in Package List: 1 x Microphone  1 x Bracket  1 x Fixing clip  1 x Microphone clip  1 x Microphone cable  1 x Anti-spray mask  1 x Sponge  1 x User manual Note:Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.