I purchased this unit for a a trip but didn't end up using it. Has been opened and test, works well and in new condition. Thanks for viewing. From Timekettle: The AI-powered translation system implementing “1+2” interaction mode - 1 App controls 2 earphones. By integrating industry-leading voice algorithms and machine translation technology, WT2 delivers hands-free and natural communication, regardless of language barriers. Wherever you go, whoever you meet, express yourself freely in any language you wish. 40 Languages + 93 Accents WT2 provide simultaneous 2-way translation in multiple languages. Covering 85% of the entire population in the world. WT2 language translator helps you acquire a new language at home. 3 Modes With App Simul Mode: Any spoken sentences will be automatically recognized. Provide absolutely hands-free and natural conversation experience. Touch Mode: Touch to speak and then release to translate. Speaker Mode: 1 Earphone + 1 Mobile phone enables conversations for 2+ people. 95% High accuracy WT2 language translator has 95% ultra-high translation accuracy. WT2 acquired the strong external technical support from Google, Microsoft, Tencent AI Lab, making it a good learning language device. Its high accuracy play a role in studying a language.