This is a fantastic product. It looks great, so good you won't mind having it in your bathroom. Setup was a breeze. I like that it could be set up from my iPhone. It works well. The tracking and trending tools fitbit provides are excellent. If you are comfortable with the price it is a stellar product. You can do the same work without the wifi ability for much cheaper but if you have the money the convenience of it keeping an automatic log is unbeatable. Paired with a fitbit activity tracker you have a very powerful set of tools for tracking and trending your health.
These headphones where good for the discounted Amazon Black Friday price, but nothing special. Wires are flimsy, the housing for the speakers is low quality. They have pretty good sound quality and if you don't mind foam earplugs then these could work for you. If you are an audiophile don't bother with these. If your looking for something to tuck under earmuffs or hearing protection at work they are a good option.
This is a very cool product. Already it has influenced my behaviour to turn down the temp a degree here or there. It wasn't that hard to install either. Just follow the directions. The little labels for each wire included in the instructions are very important and very useful making the set up 10x easier. I wouldn't expect this product to pay of any time soon but it is a fun gadget. It helps you think about saving energy and being able to adjust your thermostat anywhere there is an internet connection is a bonus. I suggest grabbing one while its on sale.