In the past few decades, great progress has been made in the technical field. So many new inventions are becoming more and more familiar to us and easy to get at any time. With these new devices, it made things easier, and the world around us suddenly changed. For example, almost everyone today uses mobile phones, so when you meet a new person, their cell phone number is the most basic information you get. However, mobile phones do more harm than good.
The advantage: you are always connected, and anyone who knows your cell phone can contact you. You can talk to them, send text messages, send pictures and use a lot of other functions. Most mobile phone service providers now have GPRS, edge, or 3G networks. You can receive and send e-mail, always have the latest information, get the exact location, market, hotel or any other place, you need them to travel, download music and movies.
The shortcoming: sometimes the mobile phone will disappoint you when you need the most. You may be in a place without network. Your battery may be empty. The network of the supplier may be overloaded. Your call may stop suddenly, or your phone may fail. The use of cell phone for a long time will be harmful to your health. There are already some studies on the possible radiation of the mobile phone. Radiation isn't really that dangerous, unless you talk on the phone. But even if you don't use it often, it will still damage your hearing, especially if you combine loud music on the phone with earphones.