Ent inspector:qh-jhqa Smart chip control Handle: According to the ergonomics design, it's using the acrylonitrile butadiene styrene material, which make it touch comfortable, operate convenience, dedication and easy to carry. Feature: High impact, high heat resistance, flame retardant, touch comfortable. Power supply Lithium rechargeable batteries. Charger Adopting a constant current and a constant voltage charging mode.With function of reverse voltage protection and battery voltage test instructions, and so on. Otoscope:qh-fdja 2.5 times magnification effect Adopt sealed structure, air blast connector, 360 circular fiber and halogen lamp lighting system. Lens has a spin lock design, ear-speculum load and unload easily, safety use. Ear speculum: Qhtg-2.5 qhtg-3 Qhtg-4 qhtg-5 Only fit for ot8c optical otoscope Ophthalmoscope:bx-jyj-01a Technical data Lighting form Large aperture Small aperture Split, center line Non-red filter(green filter) Light source 3.5v/2.6v micro tungsten halogen bulb Power supply Lithium batteries 3.7v/1500mah