* Open the console back cover with screw driver and take out the original battery, then put the bttery into protection case.
* It can get longer playing time to use the original battery with the built-in lithium battery together.
* Can connect with console and charger for console.
* There is place to put TT, R4 card in the button of the case.
* With 1pcs more touch pen as the spare.
* Made of the PC material, protect your console perfectly.
* For repair and replacement.
(via Multfunctional Battery Case Replacement for NDSi (White) @ focalprice.com $9.5)
