Power Bank iPhone 4/4S 電池保護殼 2400mAh - 紫色

The purple color looks even better in person, and the slim .59-inch profile makes it easy to slip into a pocket. It charges my phone reliably without overheating, and the 2400mAh capacity is perfect for a full day out.

I was worried it might be too bulky, but it's surprisingly slim at under half an inch thick. The 2400mAh capacity gives my phone a solid full charge, and the short circuit protection gives me peace of mind. Fits perfectly and the purple is a nice touch.

The purple color is actually pretty, and the short-circuit protection gives me peace of mind when I toss it in my bag. It’s a bit heavy at half a pound, but my 4S finally lasts through a full day of calls and texts.