External Backup Battery for Iphone / Ipod

1.compatible models: iPhone 2G, 3G, 2.all iPods (except iPod shuffl) 3.capacity: 1900 mAH Features:1). A plug-in pocket sized charger for iPod or for iPhone.2).Simply plug it into the bottom of your iPod and let the charger do the rest.3).Provides up to 250 hours of standby time, 5 hours of talk time and 20 hours of music playback.4).Compatible with the all models of iPod (except for iPod shuffl).Specification:---Output Voltage: DC 5V---Input Voltage: 5V---Battery type: Li-rechargeable battery---Battery capacity: 1900mah---Input/output Current: 500ma/800ma---Charging cycle: > 500times---Charging the battery by USB: 2~4hours---Charging the battery by USB: 2~4hours---Charge your iPhone by this product: 2~3hours---Working temperature: -10°C to 40°C---Storage temperature: -20°C to +50°C--- Product size: 67*62*15mm---Color: White and black,---Compatible with iPhone 3G, iPhone 3GS,iPhone 4 /4S and most iPod (Excluding iPod Shuffle) Photos: Packing:    

External Backup Battery for Iphone / Ipod