This is a very good product, which is ours. It is useful to visit any place. I have used this product for 7 to 8 months. It can buy it. It is very good to use and easy to use, silk India number 1 brand.This power bank can be charged at 1000mpr to 4-5 mobile phone. This product is very good design and it has 4 wells and has 1 light. It will be charged 1 mobile with 1 mobile charge.