Protection and gain flexibility to ifone 4 and 4S

good product, double the capcitée the Iphone.
Increases may be a small but compared to the weight gain does not mind. Good finish of the product.
Perfectly fits the shape of the phone, makes it just a little longer thick.
matt and slightly antidérapente hull.
it quite over the phone and allows me to utilser normally my iphone (email, phone, gps, games, internet, ...) and recharge every two days with intenssive use. Before using this shell I rechargeais every day (in the evening there was still 20% of the battery and I leave nothing open in the background), and my iphone 4 months so new battery. Also my old protective flap also rendais the thick.

The only defect I found him is that they could predict the buttons on the side to avoid having to insert a must to get the volume buttons and the button for setting vibreure.

In conclusion:

If you want a sustainable use and protection for the iPhone at the expense of a small weight can additionally. This shell gonna please you over use.

If you prefer an iphone end but the recharge every day and fair attention to the use of energy goumands programs, not too listen to music, and look for an outlet every foix you go to work or among friends.
Do not change anything and walk along the walls is often there;)

It happens Souvant end of the day in general. (But funny situation scouring all those who have a smartphone).