It is of convenience to use the microphone because it is plug and play. The omnidirectional microphone has excellent pickup performance within 3 meter. Featuring high sensitivity and intelligent noise reduction, the microphone can restore pure and clear sound. It is made of good quality metal material, durable to use. Sensitivity is as high as -45DB3DB, so you dont need to get close to the microphone to speak. Even a small voice can be clearly communicated. The length of this product is 7cm, the width is 7cm and the height is 1.5cm. Adopting gold-coated vibrating sound head and outstanding sound head structure design, it has good sound pickup effect. It is suitable for home, computer, stage, special for recording, musical instrument, live broadcast, special for KTV, special for meeting, etc. Item Name: Microphone Material: Metal Color: Black Directivity: Heart-shaped Pointing Sensitivity: -45dB3dB Microphone Type: Condenser Output Impedance: 150Q30% (at1kHz) Current Consumption: 3mA Frequency Response: 20HZ-20kHZ Equivalent Noise Level: 16dBA Features: Round, Sensitive, Plug Play Size Details: 7cm x 7cm x 1.5cm/2.76" x 2.76" x 0.59" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Microphone 1 x User Manual