I have been using this gadget from.past 2 weeks now. I would say its one of the best bluetooth device I have used till now. When it comes to music. What a awesome quality great beats and sound effects. I can listen to each and every beat really crisp and clear. When it comes.to calls it have a great feature of noise reduction which is actually very useful in many aspects. No problem atall in conecting to my device works really good. Battery backup is really mind blowing. Once fully charged I used it continiously for 1nd half day. Really satisfied with the product. The only little issue I face for which I will give it one less star is that, sometimes my ears starts paining because its ear plugs are little biger then usual size and little tight as well. Otherwise I will definately recomend it to my friends.