I usually do not write review for product that I buy , but I have to for these headphone . I have purchase several headset over the last few year , each pair a little better than the last . research several site for a quality pair , I come across these . I check the review , good and bad . compare these to a couple of other set , decide to go with this set because of the price and feature . when the set arrive , I expect to hear a improvement over the last pair , but I be blow away . the sound quality be amazing . in addition to that there be 5 different sound preset . I use these when I be bike ride and I do not loose any sound while play music through my phone -lrb- Motorola Photon 4g -rrb- . I have receive call and the person state that they can hear I as clearly as I can hear they . I be impressed by this set , Rocketfish Bluetooth High-Definition Stereo Headphones rf-mab2 . I f you look for a quailty set of bluetooth headphone , this be it .