Features: 

• 100% brand new.
• This product is an external amplifier for the PSP, PSP2000 console and greatly increases the sound volume of your PSP system
• Experience fantastic 3D surround sound from your PSP whilst playing games, listening to music or watching movies. This super speaker system will compliment your PSP perfectly while improving your overall experience.
• Special portable designed for PSP in traveling
  
• Besides PSP, it is also suitable for MP3/Movie/Game
• 1w x 2 output
• Perfectly fits the PSP console with space for buttons and charger
• Easy to insert and remove
• The product is fully CE approved and is brand new in sealed packaging.
• On/off switch
• LED indicator
• It requires 2 x "AAA" batteries