Isolation Transformer Eliminates Noise Very low harmonic and phase distortion Compact and robust design perfect for live sound and studios. Isolated XLR connector eliminates chassis ground potential Custom audio on the inputs provide 100% isolation to noise and noise-induced ground loops while maintaining signal integrity. PC board with full ground plane for reduced susceptibility to noise High quality switches - , high cycle times and reliable performance Color: Black Material: Metal Package Contents: 1 * DB Effector 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.