User manual

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The Sound of Cities
Travel through time and space with OPPO Relax 2.0. Partnering with
Music City, ColorOS team recorded sounds from global cities such as
Tokyo, Bangkok and Reykjavik, and turned them into pleasing
soundscapes in the Sound of Cities project.
You can have your sonic journey and start globetrotting on your phone.
Go to OPPO Relax - Explore - The Sound of Cities