Originally Posted by Ves
HWat's I've read some several reviews (and I've read a lot on boath) the Mophie is a bit better, is the speech is heard better.
The biggest issues both have is that 80% of the reviews I read 'complained about loss of signal strength.
Same here. I've read and read and read until my eyes have bled about these cases, more so on the Air than the slider. But I agree that most of the reviews fell in the 3 out of 5 range because reports of signal loss which I believe is to be true if you are in a low coverage area rather than an area where signal is very strong. Another complaint is that the top piece can snap too easily if you're not careful taking it off to put the phone in or take it out of the case. Seems the top is made of thin plastic in places around the access holes so be careful if you're going to be taking it on and off a lot.
You can order more cables and actually more top pieces from the mophie site if you need extras.