Function: 1. High-power red LED: Nine round red LEDs make finding a conductor quick and easy. Blood naturally absorbs this frequency of light, making the veins more visible through the skin. 2. Easy to find veins: Gently press the skin with your hand and slowly move the device from side to side. Veins will appear as shadows or dark lines and will appear on the periphery of the red light surrounding the device. 3. Easy to carry: This cord finder is slim and compact, making it perfect to carry around. You can carry it in your bag or in your clothes pocket. It can be easily used indoors or outdoors. 4. Application Situations: Widely used in pediatrics, oncology, radiology, rescue, geriatrics, laboratory, surgery, outpatient, plastic, vascular, etc. 5. Applies to people: especially suitable for infants, children, obese patients, people with dark skin or hairy skin on the face, forehead, backrests, arms, legs, face, etc. Specification: Item Type: Vein Finder Viewer Material: Aluminum Alloy Weight: Approx. 56g/1.98 oz Size: 95x28mm/3,74x1,10 inch Battery: 3xAAA (supplied without battery) Light Source: Red Light Application: vein detector, red light physiotherapy How to use: Insert the battery and press the rear switch. List of packages: 1 x Vein Finder