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Basically it is a charger for your sp, it does teh same function as the charger cord, it is a waste of money really. You don't need it. My advice is to go to http://store.videogamersource.com/ ( copy and paste the url) and get their charging stand, which actually has a purpose. It comes eith an extra full length 18 hour battery, a replacement easy open battery cover and the charger that charges both the gbasp and an extra battery AT THE SAME TIME,m for only 18.95 (it cost almost that for a battery alone!).They have a nice case there too for only 6.95. That is useful. This piece of crap isn't, its serves no function, other than to separate you from your money. Do not get a charger that doesn't charge a spare battery too. Hope I helped a little
GBA-SP Docking Station
Rating: 3/5
Found out what is it...Just a fancy Battery Charger......... Keep your GBA SP charged and ready to go with the GBA SP Docking Station from Intec. Keep your GBA SP's internal battery charged so it will be ready to play anytime. Plus, it's sleek and stylish design lets you display your GBA SP when it's not in use.
Hope I helped a little