“Does this device have MP3 or MP4 built in ; if yes please explain how it works; if no, when will there be future product with MP4, it could turn out to be one of the best sellers; that way one could get away from the phone music apps”
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Our innovation charging case providing an easy access to music control/audio adjustment/noise-cancelling mode/400MB storage offline playlack, Including a built-in flashlight/find-my-headphone/switch wallpapers feature, making them versatile and practical for everyday use.
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