I purchased this as a surprise gift for my ex-husband. He always carries a back-pack with him and he is always charging something in it throughout the day. I normally don't buy anything for him anymore but when I saw this, it had his name written all over it and I had to send it to him. It was being shipped from China so I didn't realize that the shipping would take as long as it did coming to the USA but it was well worth the wait. I received an email with delivery updates so I knew when it would arrive at the post office for him. I called him to let him know there was a package waiting for him. He was very curious and went right away to pick it up. He called me back so surprised excited! He LOVES it! He said he would put it to good use right away! He asked why I did that. My reply was "How could I not? It's perfect for you!"