Multi-language translation: Support for up to 144 language translation functions, to meet the global language communication needs of users.Comfortable wear: The design is comfortable, it is not easy to wear fatigue, and the user can maintain comfort for a long time.Automatic pairing: With automatic pairing function, easy to use, users can connect the device with simple operation.Long battery life: It has battery life, ensuring that users can use it for a long time during travel or work without frequent charging.Bluetooth technology: Using the V5.3 Bluetooth version, with more stable connectivity and higher transmission speed, to provide users with a smoother translation experience.Stereo surround sound: Support surround sound effect, provide a more realistic, immersive audio experience, so that users feel a more vivid language communication atmosphere.Unique gift choice: Intelligent voice binaural translation headset, is a unique gift choice, let your friends and family feel intimate care.Seamless language communication: Send this translation headset to your international friends to break down language barriers and facilitate smoother cross-cultural communication.Bluetooth version :5.3Battery input : 5VAHeadphone battery capacity :30mAhCharging bay battery capacity :300Duration of use with a single headset :about 5-6 hoursSensitivity :104+3dBFrequency response range :20-20000HZSupported protocol :HSP/HFP/A2DP/AVRCPDimensions :33*18.4*19mm/1.3*0.7*0.75 inchesCharging bay dimensions: 50*44.5*24.7mm/ 1.97*1.75*0.97 inchesColor: White, blackMaterial: ABSWireless distance: 10mPacking list: Instructions. Data cable. Headphones Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.