` Portable emergency charger for lithium battery devices, like mobile phone,mp3,mp4 Player,ipod,Digital Camera,PDA,PSP,etc. ` Battery: Only use a AAA battery ` Output Voltage: 6V, charge mostly cellular phone involved Nokia and mp3/mp4. `Charge current: 200mA , up to 300mA (varies with usage conditions) ` Charge Time: Up to only 2 hours of charge time. ` Red LED lighting indicate charging course ` Safe protection: overflow current and short circuit protection (within 5 second) ` Inner circuit be seen due to cap consisted of transparent PC material ` Shield color: red, blue, black and silver ` Provided with 4 phone-specific connectors ` Shield dimension: 21*72mm