All metal shell: sturdy metal appearance design, fully enclosed internal structure, ensuring stable circuit operation, suitable for studio recording Class A transistor amplifier circuit low noise Effectively improve the sensitivity and volume of dynamic microphones Small and Suitable for studio and stage performances Due to different batches, the appearance, color, and printed words of the product may be different, which does not affect the use. Material: Metal colour: black Package Contents: 1 x Amplifier 1 x SM58SK Microphone 1 x Mic Metal Grille 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.