Metal mesh protector for bump protection. With 3 meters connecting cable, no need of battery, easy to use Specifications: Type: Dynamic Microphone Directivity: Omni-directional Frequency response: 40Hz - 18KHz Output level (1000 hz) Open Circuit: -51.5dBV/ pa (2.6mV) Output Impedance: 150Ω Nominal (290Ω Actually) Microphone Connection: Three-legged Audio Plug Length of Cable: 3 meters color: Black Material: plastic+metal Note:Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Will Not Affect The Use Package Contents: 2 x Microphone 2 x Audio Cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. Professional dynamic microphone, effectively enhances the main , clearer and louder sound. Super cardioid pattern efficiently avoids noise and burst sound, and ensures the high fidelity. Made of tough and high-quality zinc alloy material, reliable and to use. A great choice for vocal performance, suitable for karaoke, family entertainment, outdoor show, conference, and other occasions. Description/Features: High frequency response for clean , effectively convert sound to audio signal.