audio isolator: filter noise and restore sound quality. Solve the problems of common ground current and noise: built-in audio transformer effectively filters the current noise caused by common ground interference to make the sound quality more three-dimensional and full. Rich interfaces to meet the needs of different devices: complete interfaces to meet the needs of different devices, multiple audio interface designs to easily meet usage needs Color: Black Material: Metal Package Contents: 1 x Audio Isolator 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.