JBL's Reflect Aware sports earphones are being marketed as noise-canceling, which makes them fairly unique -- but on top of that they're one of the first Lightning headphones. That means they have a Lightning connector on the bottom and plug directly into the Lighting port of iOS devices. So, for iPhone 7 and 7 Plus owners, that means no headphone dongle required.
They cost $200 (£150, $AU300), which is pretty pricey, but they do seem well built, with a sturdy reflective cord and a nicely designed inline remote, and they're sweat resistant. They fit me really well, too, and have silicone tips and wings that lock the buds securely in place. They reminded me of little Bose's ear tips, which are really comfortable.
On the remote there's a button for turning the noise canceling on and off. The noise canceling isn't all that strong, and it's certainly not as good as the noise cancelling onheadphones, which cost $250.
The headphones are called the Aware because they have a feature where you can choose to let more ambient sound in, which is good if you're a runner or biker and want to be able to hear the world around you -- traffic in particular. (Note: JBL also makes a USB-C version of these headphones called the Reflect Aware C for USB-C phones such as the Moto Z. Those also cost $200.)
You control the ambient noise setting in the JBL headphone app. That app also allows you to customize the EQ setting, which is important because the headphones' default setting is considerably bassy and makes them sound a little muddy. I was able to improve the sound by adjusting the EQ to a more balanced setting (in fact, I turned the EQ to "Off"), and felt better about them after that. It still lacks a little clarity and sounds a little processed, but compared to typical sports headphones it sounds good.