Feature: Made of Metal material, , firm and stable for us to use. Compact size passive metal direct box, for converting a high-impedance, line level and unbalanced output to a low-impedance, microphone level and balanced input With 1/4 inch TRS input and output and ATT for adjusting input attenuation(-0dB, -20dB, -40dB); balanced male output for standard with pin-1 ground, pin-2 hot and pin-3 cold. With ground lift you can fully separate input and output grounding, which can lower noise or ground Minimizing the unwanted noise, distortion, ground and maintaining integrity, so that you can enjoy a rich and full sound. Frequently be used to an electric guitar or electric to a mixing console's microphone input Specifications: Item Type: DI-Box 2 4 TRS; 1 Size: 12x7.5x4cm Quantity: 1 Pc Colour: Black Material: Metal Package Contents: 1 x DIRECT BOX 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.