Photo: Andrew Liszewski/Gizmodo It’s been a few years since we’ve seen something genuinely innovative in a pair of wireless earbuds that goes beyond improved battery life or better noise cancellation. But Bowers & Wilkins’ new PI7 earbuds allow you to stream audio from any device with a headphone jack using a neat trick, and while it’s a useful feature on an excellent set of headphones, it might not completely justify the steep $400 price tag. Advertisement The Bowers & Wilkins’ PI7s are also the latest wireless earbuds to broaden an ever-growing price gap for these kinds of devices. The PI7s are some of the most expensive wireless earbuds you can buy right now, while at the other end of the spectrum, companies like Skullcandy are releasing $25 alternatives that sound quite good given the price. With the PI7s, Bowers & Wilkins strives to justify that cost by including every premium feature a user could want in a pair of wireless earbuds, plus something new.