((Red)) PowerGen 4400mAh External Battery Pack Charger for Apple iPhone 4 4s 3Gs 3G / iPod Touch 1G 2G 3G 4G 5G 6G (Apple OEM Cable Required), HTC EVO 4G Sensation XE XL, Blackberry, Samsung Galaxy S2, Galaxy Nexus, Motorola Droid Razr 2 3 X, Nintendo