All metallic shell: sturdy metallic look design, completely enclosed inside structure, making certain secure circuit operation, compatible for studio recording Class A transistor amplifier circuit low noise Effectively upgrade the sensitivity and quantity of dynamic microphones Small and lightweight, Suitable for studio and point performances Due to diversified batches, the appearance, color, and printed phrases of the product could even be different, which might not impression the use. Material: Metal colour: black Package Contents: 1 x Amplifier Only the above equipment content, other item are usually not included. Note: Light reflection and various reveals may cause the color of the thing in the photograph slightly assorted from the real thing. The size allowed error is +/- 1-3cm.