Although the product looks quite compact in the pictures, it is a bit bigger in reality, but easily fits in the pocket and easy to carry. The capacity is not much tho, it gives me a 70-80% charge from almost zero on my htc desire. I was expecting a bit more power from it since its 2000 mah, but I guess there is some loss during charging. All in all a decent buy.

Got it today from flipkart. Firstly it's of 2800mAh, it's written on its packet. It's own charging time : 3.5 hours if you charge it using an actor adapter (I use my Xperia's charger) Upto 6 hours if you use pc usb source. It has cool features like it automatically cuts the power after charging completely, which preserves the batt. And it's design is awesome. I'm very impressed. It charged my Xperia M which has 17xx mAh (may be 1740) of batt. in 3 hours. It has 1000 charge cycles (written on it's packet nd manual) Every thing is fine, after all it's Sony and usually u get a portable charger of around 700/- bt u can rely on this one. But before buying please do check your smartphone battery's 'mah' for faster recharging. 2800mAh will take tym in recharging the batt. Of 3200mAH

This product in real is very useful for everyone who use their mobiles for an extended use...... It takes around 2.5 hours using this to charge a smartphone...... The only problem in the product is that it needs really high amount of recharge time which is usually 6 hours...... But all in all its a good product and worth the money......