It supports translation between more than 100 languages. Multiple accents can be translated accurately, making you can easily travel to more than 200 countries and regions around the world iFLYTEK + Nuance speech recognition engine, combined for Microsoft + Google's proprietary neural network matrix translation technology and multi-national servers, the translation response speed is faster and the translation semantic accuracy is higher Touch operation, real-time display, audio and text synchronization, clear at a glance. The interaction is more humane and the user experience is stronger Special cavity speakers provide more fidelity, clearer and more accurate playback effects, and a microphone noise reduction array ensures more accurate voice input and recognition Single earphone with 80mAh high-performance lithium battery, larger capacity, less worries, and long battery life PC craftsmanship and fine processing technology make it sturdy and durable, making it even more luxurious Ergonomic design, no pain after long time use, with business appearance design Targeted and in-depth optimization is carried out for multiple language application scenarios such as transportation, tourism and shopping, learning and communication; current new words are updated and translated in a timely manner to make them more suitable for use scenarios Support APP upgrades and updates, product functions and interactive interfaces are continuously iterated, making it convenient, fast and efficient Not only a translation headset, but also a sports headset, you can use it for listening to music, answering calls, etc. Specification: Bluetooth version: V5.3+EDR Online languages: 144 languages Scheme: JL Offline translation: supported, users pay to purchase Wireless frequency: 2.4GHZ Transmission distance: 10 meters Battery capacity: earphones 80mAh/charging box 400mAh Charging voltage/current: 5V/1A Play/talk time: about 7 hours Charging time: about 2 hours Standby time: more than 80 hours Speaker impedance: φ16mm 32Ω Microphone sensitivity: -42dB APP compatible: Android 5.0 and above, IOS 9.0, for iPhone 6S and above