Bluetooth-compatible AI Translation Headset tws Binaural Simultaneous Translation Specification: Bluetooth-compatible version: 5.4 Wireless frequency: 2.4GHZ Support protocol: For HFP, HSP,A2DP,AVRCP Transmission distance: 10-15 meters Sensitivity:105dB +3dB Battery capacity: headset lithium battery 451012/3.7V/35mAh Headset compartment battery capacity: 502030 3.7V/250mAh Charging standard: Type-c, DC5V-200mA Playback/talk time: approx. 5 hours (70% volume) Charging time: approx. 1.5 hours Standby time: 90 days Microphone: CMOS condenser microphone 4013 Operating temperature: -10-50℃ Package Includes: 1*Earphone 1*Charging cable 1*Instruction manual 2 pairs * Ear caps Note: 1. Please allow 1-3 mm error due to manual measurement. Please make sure you don't mind before ordering. 2. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't Please make sure you don't mind before ordering, thank you!