Medical professionals choose fiber optic otoscopes with halogen bulbs because of the superior quality of the illumination of ear canals or nasal passages for ear examinations and nasal examinations. This Ri-Star professional otoscope is a saffron colored Riester Ri-Mini otoscope that is imported from Germany. Use this 2.5 Volt halogren otoscope with ear speculum or nasal specula to conduct medical exams. No instruction manual is included.