The Littmann Model 4100 is the next generation electronic stethoscope combines superior acoustics with digital signal processing.

• 3M Littman electronic stethoscope with ambient noise reduction.
• 3 frequency modes: bell, diaphragm and extended range.
• Recording storage and playback on six distinct tracks of eight seconds, each without any PC connection.
• Instant playback of recordings at normal and half speed.
• Permits infrared transmission of digital recordings or IBM compatible PC or pocket PC.
• Twenty hours of continuous use from just two AAA alkaline batteries.
• Comes with sound analysis software, version 2.0 for heart sounds.
• 29" black tube.
• Two year warranty