I bought these for my desk at work to replace some cheap Panasonic headphones I accidentally dropped in my coffee mug one day. Pros: Music sounds great through these headphones. Good low, mid and high frequencies. Disadvantages: For example, when I listen to a voicemail someone left me, I get an echo. Which isn't so bad. I often get static electricity in my ear, which wasn't the case with my old cheap headphones. I made sure it is fully connected. This happens when connected to a tower or speaker bar. When I use the headphone output on the speaker bar, the speaker bar pops loudly, so I just plug it into my computer's headphone jack instead. Verdict: They are indeed most likely made for listening to music on smartphones, as I think the microphone input might have something to do with the shortcomings I found. If you're using this on your MP3 player, tablet or phone I think you're fine.
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