To have a better sound quality, switch on the FullSound feature.
Philips' innovative FullSound technology faithfully restores sonic details to compressed MP3 music, dramatically enriching and enhancing it, so you can experience CD music without any distortion.
To switch on/off FullSound, press and hold “+” and “-” buttons simultaneously during music playing.
Tip: The “+” and “–“ buttons are located on the left when you wear the device.
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