Features and designEdit
Unlike previous PSP models, the PSP Go does not feature a UMD drive, but instead has 16GB of internal flash memory to store games, video and other media. This can be extended by up to 32GB with the use of a Memory Stick Micro (M2) flash card. The PSP Go's rechargeable battery is not removable or replaceable by the user. The unit is 43% lighter and 56% smaller than the original PSP 1000 series, and 16% lighter and 35% smaller than the PSP 3000 series. It has a 3.8" 480x272 LCD (compared to 4.3" on previous PSP models). The screen slides up to reveal the main controls.
The PSP Go features built-in wi-fi, but no longer has a standard USB Type-B plug. A new proprietary Multi use connector is used for DC IN / OUT, USB, Video Output / Input, Sound Input / Output and the new system dock. The PSP Go also supports Bluetooth connectivity enabling the use of compatible Bluetooth headsets and tethering with Bluetooth enabled mobile phones. This also enables users to connect and play games using a Sixaxis or DualShock 3 PlayStation 3 controller or Bluetooth headset.
Because the PSP Go does not feature a UMD drive, games are downloaded from the PlayStation Store. While other PSP models had included the ability to run games and demos downloaded from the PlayStation Store, the PSP Go is the only model for which this is the only means of distribution. The PSP Go could directly download to itself, or users can also download then transfer the games from a PlayStation 3 or the Media Go software on Windows based computers. All downloadable PSP and PlayStation games available for older PSP models were be compatible with the PSP Go. Sony had also confirmed that all UMD based PSP games released after October 1, 2009 would be available for download,  and a majority of older UMD-only games will also be downloadable at that time.
The PlayStation Store for the PSP was shut down on March 15th, 2016. Users are still able to use a computer, PlayStation 3, or PlayStation Vita to view and purchase content.
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