41. Indication LEDs: USB / MIDI indicate communication status. LEDs glow up when there is any data transmitting. 2. Display: Showing channels, volume, tone code,Reverb value,PAN, vibrato, battery power, font size and language selection etc. (Channel can only be selected by the MIDI device) 3. Preset buttons: 3 (A, B, C) buttons for storing preset effects. To set up a button (e.g. Button A): Press Button A and the light glows.Press the big knob and select from volume / tone / reverb / Pan / vibrato. Then turn the big knob again to select value. Display shows the current value. Button A is set. 4. Data entry encoder: Turn to select value. Press to select function. Rear Panel 1ON/OFF2341. Headphone jack / Output: Connect to headphone or other output devices. 2. MIDI IN / USB Host: Connect to MIDI devices with MIDI OUT or USB output. 3. Power / Charging: micro-USB for power input or battery recharging. 4. On / Off: Press and hold for 5 sec. to turn on or off the unit. When the unit is on, press it and reset CC parameters. Operations miniEngine Pro allow you to adjust sound effects with its buttons and knob 1. Select a preset button. Press the big knob and select the function to adjust.
