Until now, the advantages of amplification in an electronic stethoscope have been negated by the sensitivity of electronic stethoscopes to distracting sounds from ambient room noise.

But thanks to a proprietary technological advancement known as Ambient Noise Reduction (ANR), the Littmann Electronic Stethoscope Model 3000 reduces distracting room noise by an average of 75% (-12dB) without eliminating critical body sounds. Combine that with amplification up to 18 times greater than the best acoustic (non-electronic) stethoscope and you have an instrument that is uniquely equipped to help you pick up difficult-to-hear heart, lung, and other body sounds.

Acoustics

• Amplification is up to 18 times greater than the best non-electronic stethoscopes.
• Ambient Noise Reduction Technology (ANR).
• Programmable volume settings.
• Ergonomic, one-button control allows you to adjust volume and frequency mode with one finger.

Chestpiece, diaphragm

• Ergonomically designed for easy, one-hand manipulation.
• Nonchill diaphragm for patient comfort.
• Accommodates infant, pediatric and adult patients.

Eartubes, tubing

• Eartubes are capped with patented 3M Littmann Snap Tight Soft-Sealing Eartips (available in two sizes) for excellent acoustic seal and comfortable fit.
• Traditional cardiology tube set allows scope to easily fold and be placed in pocket.

Power

• Single AAA battery provides up to 200 hours (approximately 6 months) of use.
• Auditory low-battery warning.
• Automatic power shut down after 3 minutes from last button activation.

Room noise enters the stethoscope through a thin gap in the chestpiece and, once inside, meets room noise that enters through the body. The two cancel each other out, leaving the heart, lung and other body sounds you need to hear.