Feature: 1. MAIN PURPOSE: LED vein finder for facial puncture assessment of blood vessels, directly displays superficial blood vessels in the skin, providing a clearer vein view. 2. APPLICABLE SCENES: The LED venous light has a compact size, suitable for family, hospital, pediatric clinic, outpatient center, laboratory department and nursing home, etc. 3. APPLICABLE PEOPLE: Suitable for checking the veins of the hands of people of all ages, for infants aged 1-10, obese people, edema people, cancer patients, normal patients, etc. 4. EASY OPERATION: The infrared vein finder is user friendly design, easy to hold and operate with one hand, convenient and labor saving, has strong practicability. 5. WITH BATTERY: Built in polymer lithium battery, up to 8 hours of long lasting battery life, high efficiency and energy saving, and equipped with USB cable for easy charging. How to Use: 1. Press the switch to light up 2. USB charging Specification: Item Type: LED Vein Light Product Size: Approx. 153 x 45 x 20mm 6 x 1.8 x 0.8in Built in Battery: Polymer lithium battery 800mAh (including battery) Light Source: Yellow Light Material: ABS Usage: Vein blood vessel search Charging Method: USB Weight: Approx. 160g 5.6oz Package List: 1 x LED Vein Light 1 x USB Cable 1 x User ManualWITH BATTERY: Built in polymer lithium battery, up to 8 hours of long lasting battery life, high efficiency and energy saving, and equipped with USB cable for easy charging. EASY OPERATION: The infrared vein finder is user friendly design, easy to hold and operate with one hand, convenient and labor saving, has strong practicability. APPLICABLE PEOPLE: Suitable for checking the veins of the hands of people of all ages, for infants aged 1-10, obese people, edema people, cancer patients, normal patients, etc. APPLICABLE SCENES: The LED venous light has a compact size, suitable for family, hospital, pediatric clinic, outpatient center, laboratory department and nursing home, etc. MAIN PURPOSE: LED vein finder for facial puncture assessment of blood vessels, directly displays superficial blood vessels in the skin, providing a clearer vein view.