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 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.