The 22800 set from Welch Allyn includes a 2.5V PocketScope Otoscope with Throat Illuminator and rechargeable handle with battery. This otoscope uses halogen light for true tissue color and consistent, long-lasting illumination. Its fiber optics provide cool light with no reflection, no obstruction. The wide angle viewing lens allows instrumentation under magnification. It has a sealed system for pneumatic otoscopy. Detach the head to use the built-in throat illumination/penlight for added versatility.