Basic edition operation steps:

1.Make sure the VOL turnto the minimum.

2.Connect the external back-end equipment to the output interface of sound source.

3.Connect the sound source that needs to be used.

4. Connect to power.

5. Press the power switch.

6. Press the input signal selection switch to select the signal (the default input of boot is PC-USB)

7. Turn the VOL button clockwise to select the desired volume.

8. If the headphone head is 3.5mm, it can be connected with the 6.35rpm 3.5mm adapter configured by the manufacturer(to use RCA analog output, unplug the headset and unplug 6.35 to 3.5 heads)

PC-USB Operation Instructinos:

1. Connect the PC-USB interface of the rear surface of the machine with factory provided USB cable (USB can support hot plug)

2. Press the input signal selection switch to select USB input.

3. The following photo shows the icon with horn symbol in the lower right corner of PC

4. Right click to pop up the dialog box and click

5. Select the playback device recognized by PC in the pop-up dialog box (USB of this machine is automatic identification, no manual installation and drive).

6. Click to confirm the identified digital output.

Package list:

• 1* Headphone Amplifier
• 1* EU Power Supply
• 1* User's Manual