Yellow model with bayonet connection system; ear funnels Ø 2.5 - 3.5 - 4.5 mm - Reliable and indestructible high quality instrument - Suitable for everyday ear nose and throat examinations - Easily adjustable 2.5 V vacuum light (made in Germany) - Quality 3X magnifying removable lens - Ideal for pneumatic tympanic membrane tests, can also be used for rhinoscopic examinations - Supplied with 3 autoclavable ear funnels in a colour coordinated zip bag. All latex free. - Requires 2 x C batteries (not included)