Bidirection Simultaneous TranslationWT2 Edge/W3 translator device offers true two-way simultaneous translation by using wifi or cellular network. With Timekettle WT2 Edge language translator, you can speak non-stop and translation will be played in other person's ear in as little as 0.5 seconds, highly improving communication efficiency - the way conversations were meant to be. Configuration RequirementsBluetooth V5.0, IOS V12, Android V7 High Accuracy and Smart Noise Reduction: WT2 Edge language translator device is powered by worlds multiple leading translation engines and Timekettle own. WT2 Edge translator earbuds use these engines' strength and combine them to deliver a truly world-class comprehensive translation experience. To make translation even more accurate, WT2 Edge earbuds use smart noise-reduction to filter out distracting background noise, ensuring the message isnt muddied Easy Connection with 4 Modes: The connection of WT2 Edge instant translator got much easier. Simul Mode: Share one translation earbuds with your partner, and both of your words will be translated into bi-directional communication. Touch Mode: Tap the force sensor to activate voice pick-up, touch again to translate. Speaker mode: 1 earbud + 1 APP. Only one person needs to wear the real time translator. Group chat: supports 40 people speaking 40 languages at most in the same chat group remotely Ergonomic Lightweight Design and Ultra Battery Life: The Edge voice translators are 46% lighter than the last-gen wt2 plus translator earbuds and 33% smaller. It is suitable to sit snug in your ears for hours on end by adopting ergonomic design. WT2 Edge pocket translator supports three hours of nonstop translating time on a single charge. And a full 12 hours with the portable charging case, meaning you'll have enough battery to power a full week of work or a short trip abroad on a single charge Multilingual Online Translation: Timekettle WT2 Edge portable language translator supports 40 languages and 93 accents for online translation. Wherever you go, you can put your best foot forward and know there's no conversation you cannot handle. From the moment you step off the plane, you can unlock the world(Black only)