Steily Technology Co., Ltd. [China]

(1)Capacity:2300mah (2)Up to 30 hours of additional music palying, (3)USB port This Power Pack External Battery has Built in 2300mA Polymerized Li-ion Battery Up to 30 hours of additional music playing, 8 hours of video, and 7 hours of talk time Rubberized Coating for Smooth & Soft Grip Built in LED Lights for Power Status & Charging Activities Power On/Off Button Makes More Effcient Usage Of the Fuel by Only Engaging When you Decided to USB Charging Cable is Included for USB Charging & Syncing Compatiable w/ Apple iPhone 3G & 3GS

External battery charger for iphone