3M Littmann Classic II Infant Stethoscope 2157
- 2.7cm diaphragm sized for pediatric patients
- Dual-sided chestpiece, floating diaphragm and open bell
- Non-chill rim and diaphragm for patient comfort
- Latex-free, phthalate-free tubing
- Large soft-sealing and large firm eartips included
- Made in the USA
Updated 20 days ago · Based on the Amazon listing and published specifications, not hands-on testing.
A dedicated infant stethoscope with a small dual-sided chestpiece that hears both high and low frequency sounds on the smallest patients. The small head is the point, so it does not serve general adult assessment.
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ASIN: B002JPSYSECategory: Stethoscopes
Overview
A small dual-sided chestpiece with a floating diaphragm on one side and an open bell on the other is the core of the Littmann Classic II Infant. Sound travels through resilient tubing to an adjustable headset with angled eartubes and soft-sealing eartips.
Acoustic detail on very small chests is why clinicians and students choose it, helped by a non-chill rim that is gentler on infants. Its small head limits it to pediatric work, and the listing does not state tube length.
Who it's for
Newborn units, pediatric clinics and nursing programs that study infant heart and lung sounds are the setting. Practitioners who mostly examine adults need a larger chestpiece than this one.
Pros and cons
- Small diaphragm fits tiny chests
- Floating diaphragm plus open bell
- Non-chill rim comforts patients
- Tubing resists skin oils and alcohol
- Small chestpiece unsuited to adult patients
- Tube length not listed in the specs
- Eartips take real effort to swap
Performance notes
Sound quality depends on the seal at both ends: the small diaphragm must rest flat on the patient and the eartips must seal the ear canal. Headset tension, set by squeezing or pulling the eartubes, governs how firmly the eartips seal and how comfortable long listening is.
Specifications
| Brand | Littmann |
|---|
Frequently asked questions
How do I adjust the Littmann Classic II Infant headset to my head size?
Squeeze the eartubes together or pull them apart to change the headset tension for head size and comfort.
Can the Littmann Classic II Infant be used on adults?
It is specially designed for the smallest patients, with a small diaphragm for pediatric use, so it is not built for adult assessment.
Are the eartips on the Littmann 2157 removable?
They snap firmly onto the eartubes and, for safety, need significant effort to remove. Large soft-sealing and large firm eartips come in the box.
Does the Littmann Classic II Infant tubing hold up to cleaning?
The next-generation tubing resists skin oils and alcohol, is less likely to stain and retains its shape after tight folding.