How to choose a metal detector

Undoubtedly, online shopping has brought some convenience. Instead of going one shop to another, people can buy almost everything on the Internet and get the goods at a lower price by contrasting products prices and features. For example, I was wondering where to buy a metal detector as a birthday gift for my son last month. I looked for every shop in my city, but I am not content with the result because of the quality, price or product. At last, I bought it from the Kingdetector easily.