... . free sample 2.compatible with ipad,iphone,ipod for iPad dock1. Syncing or charge for iPad2, iPad/iPhone3G, 3GS, 4G/iPod touch2. Built-in ... 6000mA/h Li-polymer batteries.3. Line out for ... products when you change a USB cable5. Charge for power station and ipad meantime6. 4 sections LED power indicating function 7 ...