There are a lot of Bluetooth workout headphones out on the market. But those that have jumped on the “internet of things” bandwagon are a few. A new concept from Sony called the B-Trainer headphones will let you load specific workouts and music to the headphones via companion Android and iOS apps. This means you can leave your phone at home.
The headphones are also designed to measure your heart rate and give you voice commands for your training program as well as slow down or speed up songs depending on whether you surpass or below the recommended heart rate threshold. This will be a pretty useful device once it comes to market.