Answer 2: Enamel is the hard material that coats your teeth, and is made mostly of a mineral. However, we call other things enamel. There's enamel paint, which is totally different, and there's also porcelain enamel, which is used to make a lot of dishes.
All of this is due to Amazon's unique approach with the Echo. It's not a portable speaker like we've seen from Jambox and Logitech. Instead, it's a rather large, cylindrical device that needs to be plugged into power. It's something you'll likely just leave in a single spot in your home.
Continuous watts and surge watts. Continuous watts is the most watts the generator is designed produce continuously. Surge watts provides an extra surge of power to start electric motors - such as that in an air conditioner or an electric table saw. Electric motors require a surge of power to get them started.