Till date the best over head headphones I have ever used.It costed me 700rs from a retail store.What I wanted was some great headphone with excellent stereo and bass sound effects and Philips was the brand that was worth going for.Sound output is great, Usage convenience is simple I mean its comes with a universal jack.You can completely rely on this product for great sound effects.Worth for the cost.I use it with my laptop, Mobile phone and ipod.