I'm an admitted fan of wired headphones. Serious question though... Exactly how many things do I need to charge before I lose my mind?
Off the top of my head, my wife and I have:
2 iPhones (charge every day)
2 Apple Watches (every day)
2 Surface Pro 4s (every day)
2 Kindle Voyages (every month)
Portable battery pack I need to charge to top off the phones (weekly)
2 Sonicare toothbrushes (2x a month)
Electric razor (weekly)
Canon 5Dmk iv DSLR (have many batteries)
Canon C100 video camera (have many batteries)
Wireless desktop keyboard/mouse (every 2-6 months)
PS4 controllers (weekly)
Bluetooth speaker (leave it plugged in in the kitchen)
It's getting ridiculous. I'm traveling with large powerstrips. Granted, I'm a photographer and cinematographer, so I travel pretty complicated no matter what, but I really appreciate devices that pull power from other devices, or can make it through a whole trip without recharging.
Also, I'm drowning in a sea of dongles, adaptors, and external computer peripherals.
The reason I've been on the iPhone since the 3G, even though I'm on Windows, is because I like my phone to be the least complicated thing in my bag. Or the SECOND least. The least complicated is my wired pair of headphones that always work, never die, and work with my phone, my Surface, my cameras, and even plug into my PS4 controller for loud gaming at night.
I'm not anti-iPhone 7 really. If I gotta use another adaptor, I gotta use another adaptor. But I also don't think battery powered headphones are "magical" either. Both have their inconveniences.