Specialty: The Jiusion 3X Otoscope is designed for examining earwax, infections, eardrums, and the external auditory canal to diagnose outer and middle ear diseases. This otoscope can be used not only for observing human ears but also for observing pet ears. Features: Strong LED lights and 3x zoom enhance the field of view, aiding in observing the full spectrum of auditory canal conditions. Illumination: Utilizes total reflection of optical fiber, enhanced XHL xenon halogen technology, and LED technology to optimize the light path and observation, increasing the field of view. Powered by 2x AA batteries (not included). Easy to Use: Includes 8 ear heads, 2 of each diameter (2.4mm, 3mm, 4mm, 5mm), suitable for all ages. Features a realistic ear simulation experiment head design, ensuring safety even for those with less experience. High Quality: Made from high-quality metal and ABS materials, it is robust and durable for long-term use. Beautifully organized in a hard ABS case. Perfect for home, clinics, medical schools, veterinarians, etc. With a customer-first approach, we provide 24/7 customer service. Wherever you are or whatever problems you encounter, we will resolve them for you as soon as possible to ensure a hassle-free shopping experience.