Ambrane PP-40 NA 4000 mAh Power BankBlue, Lithium Polymer

this product is nice but How many Mah power please mention that at airport security they dont allow

What i wanted i got

Product review: The plastic body kills the aesthetics. Looks and feel wise not as good as Lenevo PB410, although a bit thinner than the later. USB cable is not very flexible and feels brittle. LED indicator turns off by itself after a while charging starts, but we can check the remaining charge by pressing the power button. Efficiency is 74% according to official specification. Will update details later. Information about seller: They sent me an unboxed product with broken seal. The way the product was packed and the box was set up to make it perfectly look like a new one, untouched. When return was initialed I was informed by a mail that I have to ship the product at expense of my money and time and eventually they will reimburse the courier charges. They are completely aware of the situation here as it is happening to many people as evident from the comments section. Maybe most people will not care to take the initiative to return due to this policy and many havent taken the burden to check the seal. But let me tell you this, I can purchase the same unboxed product from somewhere else at a 100 bucks discount, then why the hell am I wasting my time researching and commenting on flipkart? The sellers are doing this intentionally by taking advantage of return policy and it is evident that the root of their business is unethical and rotten. Such business practice must be condemned and some policies must be regulated. I am losing my productivity and valuable time due to this. Who is going to compensate that?