As for the sound, it's actually pretty decent, and will most likely exceed your expectations. The RP-HT21s have a reasonable amount of clarity, play loud with mobile devices, and output ample bass. No, the sound isn't all that refined, and no the bass isn't terribly tight, but I've heard plenty of $20 to $25 headphones that sound about the same. These guys also sound as good as many entry-level Bluetooth headphones that cost around $50. But that isn't saying much.
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