Small and lightweight, easy to carry or use.Suitable for all skin types, especially infants, children or obese patients.The vein finder can be used directly on human skin to observe blood vessels.LED , widely used in clinics, hospitals or homes for intravenous injection.Unique red LED light can be used to help anyone find the vein under the skin.Operating Instructions:A: using, a relatively dark environment to avoid the engine effect due to too strong surrounding light;B: Place the instrument astigmatism area in a patient's palm or feet when using;C: Clockwise rotating power switch to open it; depending on the patient's condition, rotating power switch to adjust the brightness of the to be searched veins were clearly visible,(Avoid the eyes being exposed to instrument directly, otherwise it will cause eye discomfort, especially newborns and infants.)D: Turning off the power After using, and counter-clockwise power button to turn offE: Working time no more than 120 seconds each time, otherwise it will reduce the loss of performance or reduce the life of the .Power: 15WLED beads: four core *3 American RepBuilt-in lithium battery: 7.4V 650MACharge voltage: 8.4V1ASize: 190 x 24 x 35mmPlug Type:EU Plug,it applies to Indonesia, , , , and so onVoltage: AC100-240VColour:WhiteMaterial:plasticPackage Contents:1 x Vein Detector1 x English manual1 x ChargerOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the Colour of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.