Features: The new bluetooth-compatible version 5.4, with faster transmission and more stable signal. Efficient 500mAh battery, long battery service life. Lightweight design, not in ear, comfortable to wear. Multiple modes to switching freely, LCD touchable screen, intelligent noise reduction. More intuitived touch function, precise recognition, and prevention of accidental touch. Specifications: Material: ABS Color: black, silver (optional) Size: approx. 7x6x3cm/2.74x2.36x1.18inch Model Name: Q16 Professional Intelligent Translate Earbuds Wireless version: V5.4 Transmission distance: about ≥10m Battery: 500mAh Charging Time: about 1.5h Charging Port: Type C Frequency: 2.4GHz~2.48GHz Package Includes: 1 Pair Intelligent Translation Earbuds note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.