... quality polymer/aluminum shell core o Large capacity, double USB output, wider practicability o Short-circuit auto-protecting, charging 3 ... .5 o Input current: 1,000mA o Output voltage: § USB output: 5.3V ±0.2o Output current: § USB output: ≤1,000mA § USB Output2: ≤500mAo ... , over-current, over-charge, over-discharge, under voltage o Match products: 5V voltage mobile phones, PDA, MP3/MP4, Sony's PSP ...