I bought a new camcorder a couple of years ago. I decided, at the time to buy a Sony HD-SR11 because I wanted a smaller camcorder that I could hand hold to principally film numbers by bands I see. As usual, when you buy a camcorder, it comes with a single battery and no carrying case. I, sometimes film whole sets so needed to get both a case and a second battery so when I saw this accessory kit I bought it because it appeared to be a very reasonable price for both a battery and a case. The case can accomodate the 2nd battery in a pouch. I recommend such an accessory kit to anyone who buys a camcorder to do things like I have described.