Thank you very much for your interest in opening our product introduction page!Translation Earbuds supports simultaneous translation in 148 world languages + video translation in 21 mainstream world languages（Latest Intelligent Translation Technology).We've built in code for each headset to save you the hassle of setting up the operation(No activation code required, has been built-in processing!) .Translation headset Using advanced large dynamic drivers, powerful bass +composite frequency response, more layered;ultra-high-fidelity sound will bring you a super first-class sensory experience,You'll know that it's not only a translation headset, but also an extremely high-quality music headset! Translation language support including Chinese, English, German, Japanese, Korean, Spanish, Arabic, Russian, French, and other 148 languages(no charge).the upgraded version of the translation headset is equipped with exclusive translation software, powerful, accurate translation of more than 98.5%, while supporting dozens of different accents.The dual-channel simultaneous interpretation feature allows both parties to speak and be translated without interference, making conversations feel natural and spontaneous(Includes video call translation).You can interject at any time, with translations flowing smoothly and efficiently, Fully meet your communication and learning needs. When making a video call, the invited party doesn't need to download the app, only the inviting party needs to send a video call invitation to the other party on the translation app.When making a video call, both languages will be translated in real time, with accurate sentence breaks and no delay; each sentence will appear on the video in real time with its respective bilingual cross-references; and you will be able to review or confirm what you are communicating with each other in real time. This latest Bluetooth Translation Earbuds, Adopting Bluetooth 5.4 version technology has increased the transmission efficiency by 90%,They achieve nearly lossless transmission of audio data, ensuring the accurate restoration of audio signals. Equipped with a 50mAh high - quality battery, enabling it to work continuously for 8 hours. The charging compartment is equipped with a 300mAh high-efficiency lithium battery that can be used for up to 35 hours.Moreover, it has advanced noise cancellation and unique speakers,Accurate directional transmission technology and unique intelligent deep noise reduction allow you to enjoy mellow sound exclusively! Here special instructions on how to operate: two manuals, one of which has a QR code, scanning to identify it used to download the APP;download the APP, directly use the cell phone bluetooth to connect to the headset,Then open the APP, click on the APP "Connect device", bind the current headset device, you can use the full translation function (No activation code required, has been built-in processing!) -if you have not successfully activated and bundled the headset then please let me know immediately and I will send you a separate activation code. More intelligent applications and application modes, including the function of recording and saving the contents of each translation, the manual has been described in detail using the graphic way! This latest Bluetooth Translation Earbuds are made with precision and stylish design, Enjoy clear sound in noisy places, with minimal leakage to keep conversations private ;non-in-ear, ergonomic and comfortable to wear, suitable for long-term wear. High quality Bluetooth Translation Earbuds, you deserve it! Clarification: The headphone translation app is completely free. That's right, the app itself requires payment for use, but as the seller, we have already made a one-time purchase payment for the translation app of each earphone when it leaves the factory, so consumers do not need to pay again. Consumers can completely ignore the "pay" prompt. 4-in-1 Upgraded Model - Bluetooth Translation Earbuds, support video call real-time translation (latest technology). high fidelity audio, 148 world mainstream languages/fit iOS & Android