3M Littmann Master Cardiology Stethoscopes style-Desk_Model Audio out (stereo) and microphone

Audio out (stereo) and microphone input

They are fastened at the centre with a metal quick-release SCR buckle which has a support in cold moulded chromed metal

000 lux at 50 cm

vials or tools of the trade (4 of them detachable)

As the headpiece has a lock knob

3M Littmann Master Cardiology Stethoscopes style-Desk_Model Audio out (stereo) and microphone3M Littmann Master Cardiology Stethoscopes Outstanding acoustics: The highest in Littmann mechanical stethoscopes. Tunable diaphragm: Hear high or low frequency sounds by slightly adjusting pressure on the chest piece. Dual lumen tubing: Two sound paths in one tube eliminates the rubbing noise of traditional double tubes. Headset is easily adjusted for individual fit and comfort. Angled ear tubes align with ear canals. The 3M Littmann Master