SONY Playstation PSP Details : CPU: PSP CPU (System clock frequency 1 - 333MHz) Main Memory: 32 MB Embedded DRAM: 4 MB Display Type: 4.3" TFT LCD Display Aspect Ratio: 16:9 Wide screen Display Resolution: 480 x 272 pixel, 16.77 million colors Maximum Luminance When Using Battery Pack: 180 cd/m2 / 130 cd/m2 / 80 cd/m2 Maximum Luminance When Using AC Adaptor: 200 cd/m2 / 180cd/m2 / 130 cd/m2 / 80 cd/m2 Sound: Built-in stereo speakers Main Input / Output: IEEE 802.11b (Wi-Fi), USB 2.0 (mini-B), Memory Stick Duo media, and infrared Port Main Connectors: Memory Stick Duo Slot, USB connector, DC IN 5V connector, Headset connector Disc Drive: UMD Drive Keys/Switches: Directional buttons (Up/Down/Right/Left), Analog Stick, Enter keys (Triangle, Circle, Cross, Square), Left shoulder button, Right shoulder button, START button, SELECT button, HOME button, POWER / HOLD switch, Display button, Sound button, Volume +/- buttons, Wireless LAN switch (ON/OFF), OPEN latch (UMD) Power: Lithium-ion Battery, AC Adaptor UMD Video Codec: H.264/MPEG-4 AVC Main Profile Level 3 UMD Music Codec: Linear PCM , ATRAC3plus Memory Stick Duo Video Codec: MPEG-4 SP, AAC Memory Stick Duo Music Codec: ATRAC3plus,MP3 (MPEG1/2 Layer 3) Security (Encryption): 128bit AES Security (Copyright protection technology): MagicGate Access Control: Region, Parental Control Wireless Communications (IEEE802.11b): Infrastructure mode, Ad hoc mode (connection up to 16 consoles) Supplied Accessories:AC adaptor, Battery pack, 32 MB Memory Stick, Earphones, User guide remote control, Sample Disk, and Protective Case