Some might find the idea of shelling out Rs 25,000 for a pair of headphones a bit extravagant. But those who are up to the idea — especially if they have an iPhone or an iPod Touch handy — might cosy up to Sennheiser’s Momentum headsets. We mention the iPhone and iPod Touch in particular because the headphones have been designed keeping these worthies in mind, although they work with other phones and MP3 players too.