It's kind of interesting reading the scathing comments about the lack of a rechargable battery, but it probably makes the most sense if the two year battery life claims are true, as you'd likely be ready for an upgrade by then and the technology would be cheaper and/or more advanced. This thing isn't an iphone. It weighs a few grams. There's likely less silicon and battery in it than in the singing greeting card you got two year old for their birthday. Everyone needs to chill out