1. 5.5 inch LCD screen, equipped with an amplifier 2.Multicolor module (6 color), can switch between different display images for puncture based on the scene and patient. It is suitable for different skin colors or environments. 3. Wavelength: 850±15nm; 940±5m, non-radiative, provides real-time dynamic imaging. 4. distance: 12mm. 5.Rechargeable battery can work for 2.0hours