Features:

• Engineered to deliver maximum charge to iPhones and other portable electronics
• Microprocessor-controlled to prevent over-charging - won't damage your device
• Great for emergencies - use your phone while charging
• Never run out of power - just insert 4 fresh batteries
• Recharges up to 4 AA/AAA NiCd or Ni-MH batteries
• Prevents alkaline and damaged batteries from being recharged
• Includes accessory cables for powering your device and recharging batteries
• Great for long flights and commutes
• Charges iPhone 4, 3GS, 3G, and original
• Works best with high-capacity 2600 mAh or higher Ni-MH batteries (not included)

Enjoy perpetual portable power anytime and anywhere with the USB iPower - the ultimate high-quality charger that adds life to virtually any USB device, including iPhone 4 (and earlier models), iPod and other MP3 players, Nintendo 3DS (and earlier models), Sony PSP, and many, many more! Using four AA batteries, the USB iPower keeps you mobile without ever worrying about running out of power. And there's no waiting for a recharge - just replace the batteries! Even more, the USB iPower also recharges rechargeable batteries using a standard wall outlet or auto charger!