I also got these for 39.99 thought I'd cop them bc they looked like a good decent headphones for music listening at the computer. I also wanted something without a mic for non game play.
@K R the tune 710bt is not supported by the headphone app, so no EQ. Also using a phone EQ for bass makes crackling on high end notes. I'm ordering one refurbished for 74 bucks and I'll report back with my findings