Fangrui Product Details Multifunctional Translation Earbuds: The Ai Translation Earbuds Support 144 Languages, Combining Translation, Music Playback, And Calling In One Device To Meet Your Diverse Communication Needs.they Deliver An Immersive Music Listening Experience And Allow You To Hear Clear Conversations, As If You Were Communicating Face-to-face.free One Year Subscriptionthe Earbuds Come With An Exclusive App With One Year Free Online Translation Subscription. Online Translation Is Ready To Use Without Any Purchase.bluetooth Connectivity For Easy Operation.smart Charging Case With Digital Display: The Charging Case Is Equipped With A Digital Display, Making It Easy To Know The Charge Status Of Your Earbuds And The Charging Case.these Bluetooth Translation Earbuds Can Be Fully Charged In Just 1-2 Hours And Can Be Used Continuously For 8 Hours, And The Charging Box Can Be Used For 32 Hours, Which Is For Long-distance Travel Or Long-term Use.active Noise Cancellation And High-definition Stereo Sound: The Earbuds Up To 25db Of Active Noise Cancellation, Allowing You To Hear Translations Clearly Even In Noisy Environments.note: Before Starting A Conversation And Translation, You Need To Connect The Translation Earbuds To Your Phone Via Bluetooth And Set The Respective Languages For The Two Earbuds In The App (in Any Mode You Wish To Use).