(The V20 also has a build in quad DAC that is pretty amazing but only functions with wired connections. Nothing lasts that long with kids. 50% des Produktpreises selbst! I purchased these when they were on promotion and couldn?t be happier. Dont be tempted by the "certified refurbished" label. If you plan to wear your buds outside I definitely recommend them! Dont replace the stock headphone earpads out of the box. It was insane. I have ?medium sized ears? and these fit into my ear canals very well. These are very nice and exactly the style I was looking for.