1. 1,144 languages translation: The translation earphone supports online translation of 144 languages (free for one year). It is equipped with a professional translation system, which is more efficient and convenient. In the future, more minority languages will continue to be updated. 2. Real - time translation: The translation earphone supports real - time translation of real people and multiple languages. Download the APP according to the user manual, set the source language and the target language, and then speak what you want to say. 3. Three translation modes: Touch mode (two people wear the earphones, click or double - click to translate in real - time). External speaker mode (one person wears the earphone and the other holds the phone). And free voice mode (two people wear the earphones for real - time translation). The translation speed is only 0.2 seconds. 4. Music function: This translation earphone is also a music earphone, compatible with Android, IOS and Windows systems. Double - ear fingerprint control - touch the earphone to switch songs, make phone calls, etc. The stereo system with intelligent noise cancellation allows you to enjoy immersive music. 5. With a charging case: The Bluetooth 3 translation earphone comes with a charging case and a built - in large - capacity battery to ensure a long battery life. It has a battery level display, which makes it convenient to check the remaining battery power and avoid the embarrassment of sudden power outage.