Seems a good price for this - Cheapest elsewhere is Gameseek at £30 delivered.
Edit - Compatable with Slim & Lite via mini jack only.
Edit 2 - Yep, comes with an adaptor so fully compatible with the Slim & Lite.
Connect your PSP using the 1.5m audio cable (included) via the auxiliary audio input, sit back and enjoy the experience in virtual surround sound with SRS TruSurround. Dock your PSP into the Speaker System and enjoy the full dynamic performance of your soundtracks like never before in virtual surround with SRS TruSurround. Connect your external audio devise (iPod, MP3 etc) using the 1.5m audio cable (included) via the auxiliary audio input and listen to your tunes in high quality stereo reproduction.