The awe and excitement that has made Sony Playstation so popular as a TV game now lets you take it on the road and do more than you magined. The PSP is more than a portable version of Playstation. It's a portable entertainment center with MP3 and MP4 download and play capabilities. This nearly pocketable portable has a built-in, bright, high-resolution 4.3 inch (diagonal) color TFT LCD widescreen (for 16:9 perspective), built-in stereo speakers, and amazing connectivity. With an integrated 802.11b WiFi processor, you can share your online games over wireless networks - where available. In addition to playing exciting games exclusively designed for the PSP on its UMD drive, there are also a number of movies available. UMD is a small, high-capacity optical disc that allows up to 1.8 GB - providing an extremely versatile format for games, music, and video. A built-in USB 2.0 slot enables computer connectivity for downloading music as ATRAC and MP3 files, video as MP4 files, photos as JPEG and online connectivity. Files may also be stored on MemoryStick Duo digital-media cards. Built-in stereo speakers Input / Output Connectivity - 1 audio out, 1 microphone in, 1 control connector, 1 x USB 2.0, 1 Memory Stick Pro Duo slot, IrDA wireless, IR remote (allows simultaneous multiple PSPs to be connected) / Integrated Communications - 802.11b Wi-Fi Sony Proprietary UMD Drive Power - PSP's battery is a removable, rechargeable lithium-ion battery. It's possible to charge the PSP while using the system Control Buttons - Square, Triangle, X, and Circle face buttons, a digital pad, start, select, an analog thumb stick and two shoulder buttons on the top / Brightness control and Sound mode selectors Built-in copyright protection system utilizes a combination of a unique disc ID, a 128-bit AES encryption key for media, and individual ID for each PSP unit