【Multilingual Translation】Supports translation of 144 languages, making it an essential tool for international communication. 【Dual-Purpose Functionality】Functions as both a translation device and a music playback earphone, offering versatility for various uses. 【Long Battery Life】Equipped with a high-capacity charging case, ensuring extended usage without battery anxiety. 【Advanced Bluetooth-compatible Technology】Features Bluetooth-compatible 5.3 chip for stable and efficient wireless connectivity. 【High-Quality Audio】13mm speaker unit with a frequency response of 20Hz-20KHz delivers clear and immersive sound. 【Convenient Charging】Type-C charging port for easy and fast charging of both earbuds and case. Specifications: Model: K30 Bluetooth-compatible version: 5.3 Speaker unit: 13mm Frequency response: 20Hz-20KHz Sensitivity: -42dB+2dB Charging interface: Type-c Bluetooth-compatible transmission distance: >10m Music time: about 4-5 hours Charging case battery capacity: 200mAh Earphone battery capacity: 30mAh Note: It requires to download the software to connect, some content is charged (two years of online free)!