There are no apps for them. But it is not necessary. They connect without problems. I control them through the Band 6 bracelet with NFC. Everything works clearly! Tracks are switched. The volume is adjustable. They need a good source! With a good player, where the built-in DAC for each channel! The sound is great! Files 24/192 or 32/192. DSD do not pass! On a smartphone, the sound is not the same! Yes, a smartphone and wired does not sound right. With the player, the headphones sound great for such a price!
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