6 of 7 people found the following review helpful
Light, secure fit, ok battery life, easy to use, slim, inexpensive & looks good. The button on the back should be recessed.,
Verified Purchase(What is this?)
This review is from: Kinps®2300mAh external power pack case and rechargeable back Up battery charger for iPhone 4 & 4S (Wireless Phone Accessory)
I use this while out on long cycle rides as the GPS on iphone eats the battery. It's so light I bought another and carry that as a spare when I'm out all day. The only negatives are the button should recessed as it can get pressed accidentally and theres no protection for the screen. Great though and has made a big difference to my usage of the phone while out and about.