When we purchase POS cash register, the first to consider is your electronic cash register whether meet the needs of those features, different business areas of the cash register form and function have different needs. Such as tea shops, first be sure that you want to use the touch screen cash register. The size of our common tea shop are generally not large. So we need to buy a relatively small volume of POS cash register, to save checkout space. Furthermore, this casual shops need to show the latest product information and design products so that we understand, then most of the customers will think of the dual screen pos system. The second is to understand the product features and quality content. The last one is the product of after-sales service, to know whether the supplier to provide technical support during the use of the product, find a solid guarantee for your products.