All metal shell: sturdy metal appearance design, fully enclosed internal structure, ensuring stable circuit operation, suitable for studio recordingTransistor amplification circuit: Adopting class A amplifier circuit design, paired with high-order transistorsCreated MP5+with lower ear output impedance and stronger load capacityThe speaker amplifier can provide a pure gain of 28DB without affecting sound qualityDue to different batches, the appearance, color, and printed words of the product may be different, which does not affect the use.Colour:RedMaterial:MetalPackage Contents:1 * AmplifierOnly 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.