Welch Allyn 3.5V Diagnostic Otoscope,Insufflation bulb and tube with tip. Halogen light ensures true tissue color and consistent, long-lasting illumination, while fiber optics provide cool light with no reflections or obstructions. A wide-angle viewing lens allows instrumentation under magnification. The system is sealed for pneumatic otoscopy. Otoscope includes four polypropylene specula. price of each.