The main job of this device is to take spoken words in one language and instantly translate them into another. For example, if you are an English speaker visiting China, you can speak in English into the device. It will quickly translate your sentence into Chinese and speak it out loud so the other person can understand. The other person can reply in Chinese, and the device will translate it back into English. Unlike apps on phones, a language translator is built only for translation. That means it works faster and often provides more accurate results. Many devices can translate more than 100 languages, including popular ones like Spanish, French, German, Japanese, Korean, and Arabic. Some even work offline, which is very useful when there is no internet connection.