Vein finder for nurses Dual Power sourses: This vein finder device must be connected to a power supply with US plug charger or USB cable.Vein scanner Ultra bright 15pcs LED Transilluminator Vein Finder can detect veins up to 10mm in depth and may be used on both adults and infants.Vein locator Updated Round Ring shape design allows veins detection with best result in darkness.High Efficiency Vein finder device on hands, arms and legs for adults and children reducing pain for patients.Vein displayer Package Included: Handheld vein finder device, USB cable, US Power Charger, User Manual,Gift Box package.