Travel product External battery pack for PSP Capacity: 6600mAh Output voltage: 5V Output current: 2A(max) Travel product External battery pack for PSP ,ipod, mp3, mp4 as well ... 2A(max)3.AC charger: 12V,0.5A4.Battery protection: over discharge/over charge/excess current/short circuit5 ... out cable9.Charge time:3~4hours10.Battery gauge: 4 LED indicator Function:Compatible for PSP,ipod , mp3, mp4 as well ...