The headphones were a gift. Normally, I would have increased bluetooth listening for the music not me. I have to mow or to move freely around me without annoying cables different headphones in very good quality, but wanted a ride on the bike, lawn. The sound quality is amazingly really good and the basses come not too exaggerated. With Bluetooth you have to really pull off a few points in the sound quality, this is not so bad. The phone is also comparable, according to my interlocutor my original VW speakerphone system. Charging is done by a good 30 minutes and the battery lasts forever really. I have the headphones connected to my iPad and my iPhone. Both runs parallel what huge benefits, but also smaller disadvantages as everyone can imagine. Ipad relaxing reading with the slightly while listening to music from the iPad, then very loudly receive an email or WhatsApp ton ... Ouch. But for that the device can not! Carrying Quality: Set properly is very important, then also expresses nothing. That's when the headphones are always a balancing act. He is supposed to, but not every few minutes slide down even to fixed pressures. There are slight deductions. An example: lawn mowing = 40 minutes twice fell down. This can my Koss Porta Pro better. But he is also lighter and more alone so he has it easier. But the advantage: ipad placed in 1.5 meters high on a tree and on all the grounds very good reception mow the lawn, and in the last corner at about 25 meters away. No cable with which one gets stuck somewhere. In the house: here is the range with the iPhone is not very large. But that is the iPhone. 1.5 rooms is around final. So in the bathroom, opposite the bedroom where the phone is, the reception is still class, a spatial further, we go down to the end .. When you go for ipad even one floor down yet. Only there is then concluded in the far corner of the kitchen. Estimated times for 11 yards in a straight line diagonally through the house and through a ceiling and three walls. The ... buttons next song, back and louder softer go very well. On or off, and answer (everything a button) are not well resolved. Here you have to press hard on the right spot so I turn off and on when I have him him still in his hand. It is for the price super, the nice Schenkerin but claiming that you acquired it for a good half in any action (or about 40). He is however unbeatable.