Conclusion: The MX W1 earphones would have fared better on our rating scale if its price weren't sky-high. But we do appreciate that Sennheiser is incorporating Kleer's wireless audio technology—which is vastly superior to Bluetooth—into a high-quality product.
Excerpt: I have lost quite a few headphones in Mumbai's crowded trains. Whenever I've been foolish enough to attempt getting in while listening to music, the cable's been pulled out by the surge of people. In such circumstances I've wondered if there’s a wireless solution to my problem. Sennheiser’s MX W1 seems to be one, though I don’t see how I can possibly get a pair without forfeiting a month’s salary.