Another pretty neat feature of this case was that the design acts as a virtual speaker box, redirecting sound from the bottom of the iPhone 4 to the front, resulting in a richer, fuller sound quality.Once you get your mits on the case itself, and get a feel for it, it immediately hits you that the case is not heavy in your hand at all. Officially, the dimensions of the Juice Pack Air are 5.07 in x 2.51 in x 0.68 in; 2.5 oz, however the case itself feels far less than this in width and depth thanks to a contoured back much like the back shell of an iPhone 3G/S.One thing which is very neat about this case, and a feature that we love, is the insertion of an all-new integrated LED status indicator on the bottom which tells you exactly how much juice is left at the push of a button.
Putting the Juice Pack Air on to our iPhone 4 was as easy as one two three, which requires you to simply slide your iPhone 4 in to the lower two thirds of the case which connects to the iPhone 4′s sync port – once you have done this, just apply the top third of the cover and hey presto you’re covered.With the phone finally in it’s case you’ll notice the added bulk initially, and ever so slightly the weight. The actual feel of the case when on is one of solidness and sturdiness and the case feels as though it could take a fair knock or two although we never recommend dropping an iPhone 4. With all this talk abot the case adding bulk to your iPhone 4 you have to question the fact that this case is designed to increase your iPhone 4′s battery life, and a little bit of added bulk is always going to happen.Texture wise the case has a matte effect to the back, which could fray over time (although it is a high quality matte) and a hard plastic shell around the rim. We have to say at this point that the case is wonderfully designed, and although it adds a little bit of length and depth to the iPhone 4, the case is a looker all by itself (see images for proof).The cutouts on the MophiE JPA for the power, mute, and volume buttons inhibit the common one-handed access to the iPhone 4′s buttons. The volume and mute, however, were only accessible when deliberately holding the case for two hand operation (holding your phone in one hand and pressing a button with the other). We found this a small issue, which was overcome by the visual appeal.


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