a) The switch position in "" is stereo input (supports two players singing independently); "PC/PS2////XBOX360/" is mono input, such as "ROCKBAND" for other music games , please select according to your needs. b) When the converter switch is moved from one side to the other, it should be unplugged before operation. c) The converter is not limited to the above two game discs, as long as it can use MIC games. d) "" is a two-channel game, so the converter switch should be turned to the "" side. At this time, the sound of the MIC inserted in the blue MIC socket is output by the left speaker, and the sound of the MIC inserted in the red MIC socket is output by the right speaker (of course the output device is also two-channel). e) "ROCKBAND" is a mono game (the same operation applies to other music games). The converter switch should be turned to the "PC/PS2////XBOX360/" side. At this time, no matter whether the MIC is plugged into the blue MIC1 socket or the red MIC2 socket, the left and right speakers output the sound at the same time (mono sound). Colour:Black Material:ABS Package Contents: 2x USB Wired Microphone 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.