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Audio operation


Identify the left and right headphones. (There is a semicircle raised bump on the L (left) side.)

Wearing_FX23_9BT + Wearing FX23BT

Left: Bump

The medium-size silicone ear pieces are attached when purchased.

Incorrect earpiece size can result in sound leakage and lack of bass.

To enjoy good sound quality, choose the most suitable earpieces from S (small)/M (medium) and fit them into your ears.

Check that the earpiece is securely attached as shown in the figure.

If the earpiece is not securely attached, it may slipped off when in use and remain in your ear. If the earpiece remains in your ear, be careful not to push it further into your ear.

Wearing_1 FX23_9BT

Listening to music

Launch the music player app on the BLUETOOTH device connected, to start playback.

Music Play

Operating the remote control


Play/Pause (Icon_Play-Pause)

Press Maru button once quickly.

Volume adjustment (Icon_Volume-Down/Icon_Volume-UP)

Press Minus Icon/Plus Icon button once quickly.

Hold down the button to change the volume continuously.

Skip to the previous track or beginning of the current track/Skip to the next track (Icon_REW/Icon_FF)

Press Minus Icon/Plus Icon button twice quickly during playback.

This unit cannot guarantee operation of all of the remote control functions.

When the remaining battery power becomes low, an alarm will sound.