Features:; Advanced vein image recognition ability, it has 5 different detection modes for selection.; Infrared high sensitivity 1/4inch CMOS, with comfortable and delicate appearance. USB rechargeable design, convenient to use and operation, suitable for both adult and children to use.; The design is based on the principle of strong absorption of infrared light by hemoglobin. Hemoglobin absorbs infrared light better than skin and other tissues, so it can detect reflected infrared light through infrared cameras.; Through the computer USB interface acquisition, and then image enhancement recognition processing displayed on the screen.; ; Specification:; Condition: 100% Brand New Material: PS PC Charging Mode: USB Package List: 1 x Vein Finder 1 x CD 1 x Manual