Full featured 2.5v set with 5 different instruments in a fitted case. The complete set features: Bayonet locking mounts for each instrument head to allow secure connection to the battery handle "C" cell powered, satin finish battery handle with knurled finish Rheostatic on/off switch Complete in zippered case with fitted insert that is scuff and scratch resistant and cleans easily Weighs 23 1/2 oz Inspected and packaged in the U.S.A. from foreign components Batteries NOT included Otoscope features: Chrome-plated Otoscope head with removable 3x magnifying lens, and insufflator fitting Auto-clavable, polypropylene ear specula in 2.5mm, 3.5mm, and 4.5mm sizes Adapter to allow use with Welch Allyn or compatible disposable specula Nasal speculum adapter with manual screw opening for instrumentation connects to the otoscope head Welch Allyn disposable polypropylene ear specula in 2.75mm and 4.25mm sizes are convenient, safe, and economical Ophthalmoscope features: Ophthalmoscope head with lens wheel featuring 24 corrective lenses from –25 to +40 diopters Meets or exceeds ISO 10942, ISO 15004-1, and ISO 15004-2 Bent Arm Illuminator features: Chrome-plated bent arm larynx and nasopharynx illuminator for lighting the oral cavity and pharyngeal area One 3.0mm and one 4.0mm mirror with integral tongue depressor holder that attaches to the illuminator One tongue depressor attachment for the illuminator One disposable tongue depressor adapter for the illuminator