Follow step to start your music tours: 1. Connect the marked "MIDI IN" to the MIDI "OUT" socket of a MIDI keyboard (or MIDI device). 2. Connect the marked "MIDI OUT" to the MIDI "IN" socket of a MIDI keyboard (or MIDI device). 3.Plug the USB into any USB socket on your computer. 4. Open your music software program e.g. Sonar MIDI Connections etc. 5. Set the music programs MIDI in and MIDI out devices to "USB Audio Device". Your USB to MIDI interface is now ready for use. 6. To save potential problems it is recommended that this interface is always connected to the same SUB as it was originally installed on USB to prevent multiple installations of the driver. This USB MIDI is made of soft bare copper material for durability. Supports 16 channels of MIDI I/O. Built-in high-performance FPT chip provides accurate recording for each note and stable no-delay input signal for MIDI data transmission. The USB MIDI interface adapter uses anti-electromagnetic interference technology. The intelligent LED indicator shows the working status red indicates power is on and blue indicates signal connection. color: red material: plastic Package Contents: 1 * MIDI to USB Converter 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 measurement allowed error is +/- 1-3cm.