A Safe (box) is a special container. According to its function is mainly divided into fire safe and anti-theft safe, magnetic safe, fire-proof safe and fire-proof safe deposit box and so on. Each kind of safe has its national standard. Most of the safes in the market are the first two. According to different password work principle, anti-theft safe (box) can be divided into mechanical insurance and electronic insurance Two, the former is characterized by cheaper prices, performance is more reliable. Most of the early safes (boxes) were mechanical safes (boxes). Electronic Safe (box) is the electronic password, IC card and other intelligent control mode of electronic locks applied to the safe (box), its characteristics are easy to use, especially in the hotel when used, the need to change the password often, so the use of electronic password safe (box), it is more convenient.