I've bought the battery, because my iPhone 4 is not just the longest maturity. The device allows the phone 3-4 times recharge, it's quick and easy, because the battery is relatively small and light. The build quality is 1a, no cheap plastic as is often experienced with Asian products. It incorporates a flashlight. This goes on and off when the button twice suppressed (it took me a while before I get that). A small to charge him, and the second large to pull the tide: A little complicated is that the battery has two outputs. The advantage though is that you can charge battery and mobile phone at the same time, what I do not like it, however, is that you have to carry two cables (in my case the USB miniUSB, and the second that of the mobile phone. In addition, only include a cable supplied to charge the battery via USB. One of the outlet is missing. Given the fact that there is the battery without "MTECH" elsewhere much cheaper, I find that the right to an appropriate cable through the markup here is justified.
Summarized again for lazy to read:
+ Relatively high capacity + Very light and compact + Good workmanship + Built-in flashlight
- Two cables necessary - Contain no cable included to charge the battery via the power socket (only one for USB)
