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You are here: Home » Medical Equipment & Supplies » Stethoscopes & Accessories » Stethoscope Manufacturer Information » Phillips Stethoscopes » FAQ's

FAQ's

Philips Stethoscopes FAQ's

Philips Electronic Stethoscopes Frequently Asked Questions:

Learning about Your Philips Electronic Stethoscope
Philips Electronic Stethoscope
How are Acoustic Stethoscopes different from the Philips Electronic Stethoscope?
With an acoustic stethoscope, sounds are picked up by a diaphragm and transmitted through rubber tubing to the ears. The length of the tubing and bends in the tubing can cause distortion. The sound cannot be amplified, and extraneous sounds cannot be filtered.

With an electronic stethoscope, however, sounds are transferred to a microphone behind the diaphragm in the chest piece. The sounds are then amplified and sent through wires to speakers in the eartips. There is no distortion, and the user controls the degree of amplification. Philips Electronic filtering eliminates many of the extraneous sounds created by hand motion and ambient noise.

What is the difference in amplification between an acoustic stethoscope and the Philips Electronic Stethoscope? The default volume for the Philips Electronic Stethoscope is equivalent to an acoustic stethoscope. The four volume levels of the Philips Electronic Stethoscope then provide amplification of up to 14 times that of acoustic stethoscopes.

Does it take long to adjust to using an electronic stethoscope? For any clinician, switching from an acoustic stethoscope to an electronic stethoscope will require some self-teaching and concentration. Switching to a fully electronic stethoscope is like getting a new pair of glasses after years of not seeing the eye doctor: everything becomes sharper and crisper. This may be mildly disorienting, but only at first.

What material is the Philips Electronic Stethoscope made of? The Philips Electronic Stethoscope is made of shock-resistant plastic and non-latex rubber materials. A wire runs from the microphone in the chest piece through the rubber tubing to the speakers in the ear tips.

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Using the Philips Electronic Stethoscope

Does it matter which ears I put the eartips into? Yes, the eartips are designed with the ear morphology in mind. After you place the eartips in your ears, the Philips logo on the neckpiece should face the patient.

How do I turn on the Philips Electronic Stethoscope? To turn on the electronic stethoscope, press the small black button on the top of the chest piece. It will automatically default to Diaphragm Mode.

How do I turn off the Philips Electronic Stethoscope? In order to extend the life of the battery, the stethoscope automatically turns off three minutes after you activate the last button.

Which mode is the default mode? When you turn on the Philips Electronic Stethoscope, the green light flashes to indicate that Diaphragm Mode (the default mode) is active.

Can I change modes during auscultation? Yes, just press and hold the small black button on the top of the chest piece. The yellow light indicates that Bell Mode is active. The green light indicates that Diaphragm Mode is active. You can toggle back and forth between modes.

How do I adjust the volume? To increase the volume, press the /\ button on the neck piece. To lower the volume, press the \/ button. There are four volume levels. Level 1 (the default volume) is equivalent to acoustic level. Levels 2, 3, and 4 increase by seven decibels per level.

How do I know which volume level is selected? When you turn on the Philips Electronic Stethoscope, it automatically adjusts to Level 1. Since there are only four volume levels, you can always select Level 1 by pressing the \/ button three times or Level 4 by pressing the /\ button three times.

Can I use the electronic stethoscope on infants and children? Yes, you can use the electronic stethoscope on patients of any age and size.

Is there a pediatric diaphragm for the Philips Electronic Stethoscope? No, there is currently no pediatric diaphragm. You can use the regular diaphragm on infants and children.

Do you need to apply pressure to the diaphragm when listening? No, you don’t need to apply pressure to the diaphragm. The diaphragm must only be in contact with the skin.

If my hands move or shake, will I be able to hear heart sounds? Yes, the Philips Electronic Stethoscope offers hand tremor filtering. Hand movement does not interfere with auscultation.

If the patient coughs or if there is a loud noise while I’m listening to heart sounds, will it hurt my hearing? No, the Philips Electronic Stethoscope has Auto-Impact Muting, which protects your ears by muting high intensity impact noises.

Is it possible to connect the stethoscope to a computer? No, there is currently no external cable port connection for recording or downloading auscultation data.

Does the stethoscope have an external cable port so that other people can hear the auscultation? No, the Philips Electronic Stethoscope cannot currently be connected to an outside speaker.

Can you use the Philips Electronic Stethoscope with a hearing aid? The Philips Electronic Stethoscope is not compatible with hearing aids. However, many customers find that the amplification provided by the Philips Electronic Stethoscope is sufficient, so you may want to try removing your hearing aid.

Does Philips plan to offer an electronic stethoscope for people who are hard-of-hearing? At this time, Philips does not have plans to offer a hearing aid compatible electronic stethoscope.

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Easy Solutions to Common Problems

What can I do if I require additional length? The Philips Electronic Stethoscope is available in two hose lengths: model M4530A (28"/71cm) and model M4534A (40"/102cm).

What should I do if I can’t hear anything? Try the following:
  • Press the small black button on the top of the chest piece to ensure that the stethoscope is turned on.
  • Turn up the volume by pressing the /\ button.
  • Make sure the eartips are in the correct ears. The Philips logo on the neckpiece should face the patient.
  • Try again. A loud noise may have activated Auto-Impact Muting.
  • If the lights are flashing simultaneously at power on, replace the battery.


What should I do if the headset pressure is uncomfortable? To adjust the pressure of the headset in your ears, completely collapse the binaurals so the earpieces are crisscrossed. Then press and turn the large button on the back of the neck piece. To reduce the space and increase the pressure, turn clockwise. To increase the space between eartips and decrease pressure, turn counterclockwise.

How can I reduce ambient noise? The Philips Electronic Stethoscope automatically filters ambient noise. However, if you need to further reduce ambient noise, decrease the volume by pressing the \/ button.

How can I reduce noise artifacts? To reduce noise artifacts, move away from cellular phones or other sources that may emanate an electromagnetic field.

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Taking Care of Your Philips Electronic Stethoscope

How should I clean the Philips Electronic Stethoscope? Simply wipe the stethoscope with an alcohol pad after each use. Clean or replace the eartips periodically to prevent cerumen build-up.

Can I immerse the Philips Electronic Stethoscope in water or alcohol? Do not immerse your Philips Electronic Stethoscope in any liquid. To clean the stethoscope, wipe the stethoscope with an alcohol pad.

How do I replace the eartips? To replace the eartips, simply pull the old eartips off and replace them with a new pair.

How do I know when the battery is low? When the battery is low, the green and yellow lights flash three times when you turn the stethoscope on. The lights flash every five seconds thereafter until you replace the battery. Under normal circumstances, a battery lasts approximately one year.

Could the battery die in the middle of an exam? No, the lights flash to warn you when the battery is low so that you have enough time to replace the battery.

What kind of battery does the Philips Electronic Stethoscope use? The Philips Electronic Stethoscope uses one 3.0VDC lithium battery, type CR2450N.

How do I replace the battery? To replace the battery, slide the battery cover off the top of the chest piece, remove the low battery, and insert a new one. Slide the battery cover back onto the chest piece until it clicks into place.

How can I order replacement parts? We offer them here.

Which replacement parts are available for the Philips Electronic Stethoscope?
  • M4504-60000 Soft eartips
  • M4530-60040 Battery cover
  • M4504-60010 Firm eartips
  • M4530-60050 Replacement battery
  • M4530-60020 Diaphragm
  • M4530-91000 User’s manual
  • M4530-60030 Non-chill ring

Is there a warranty? Every Philips Electronic Stethoscope is warranted against defects in materials or workmanship for one year from the purchase date.

Can I put the Philips Electronic Stethoscope in my pocket? Yes, the Philips Electronic Stethoscope is compact and is designed to fit in your pocket. Simply collapse the binaurals and fold or roll the tubing.

If I inadvertently hit the Philips Electronic Stethoscope against a hard surface, will it cause damage? No, the Philips Electronic Stethoscope is made of impact-resistant materials. Hitting the stethoscope against hard surfaces during normal use will not damage the stethoscope.

Is it safe to use the Philips Electronic Stethoscope in cold and hot weather? You can use your Philips Electronic Stethoscope in temperatures of -5°C to 60°C. You can store it in temperatures of -40°C to 70°C.

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Transitioning from the Rappaport-Sprague and StethosTM Stethoscopes to the new Philips Electronic Stethoscope

What will happen to my current inventory of Rappaport-Sprague and StethosTM stethoscopes? Contact your local Philips representative for details.

Will Rappaport-Sprague and StethosTM stethoscopes continue to be marketed and sold? Philips will continue to sell its line of acoustic Rappaport-Sprague stethoscopes, but StethosTM stethoscopes will no longer be available for sale. StethosTM replacement parts will be available for at least one year.

What happens if a StethosTM is under warranty and needs to be replaced? If a StethosTM needs to be replaced, the customer can choose to receive either a StethosTM or a new Philips Electronic Stethoscope.

Do StethosTM parts fit the new Philips Electronic Stethoscope? Only the StethosTM eartips are compatible with the Philips Electronic Stethoscope.

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Teaching Customers about the Philips Electronic Stethoscope

How do I explain the difference between acoustic stethoscopes and the Philips Electronic Stethoscope? With an acoustic stethoscope, sounds are picked up by a diaphragm and transmitted through rubber tubing to the ears. The length of the tubing and bends in the tubing can cause distortion. The sound cannot be amplified, and extraneous sounds cannot be filtered.

With an electronic stethoscope, however, sounds are transferred to a microphone behind the diaphragm in the chest piece. The sounds are then amplified and sent through wires to speakers in the eartips. There is no distortion, and the user controls the degree of amplification. Philips electronic filtering eliminates many of the extraneous sounds created by hand motion and ambient noise.

What is the difference in amplification between an acoustic stethoscope and the Philips Electronic Stethoscope? Four volume levels provide up to 14 times the amplification of acoustic stethoscopes.

Does it take long to adjust to using an electronic stethoscope? For any clinician, switching from an acoustic stethoscope to an electronic stethoscope will require some self-teaching and concentration. Switching to a fully electronic stethoscope is like getting a new pair of glasses after years of not seeing the eye doctor: everything becomes sharper and crisper. This may be mildly disorienting, but only at first.

What material is the Philips Electronic Stethoscope made of? The Philips Electronic Stethoscope is made of shock-resistant plastic and non-latex rubber materials. A wire runs from the microphone in the chest piece through the rubber tubing to the speakers in the ear tips.

{Back to Top}


Taking Care of the Philips Electronic Stethoscope

What kind of battery does the Philips Electronic Stethoscope use? The Philips Electronic Stethoscope uses one 3.0VDC lithium battery, type CR2450N.

Which replacement parts are available for the Philips Electronic Stethoscope?
  • M4504-60000 Soft eartips
  • M4530-60040 Battery cover
  • M4504-60010 Firm eartips
  • M4530-60050 Replacement battery
  • M4530-60020 Diaphragm
  • M4530-91000 User’s manual
  • M4530-60030 Non-chill ring


What is the warranty for the Philips Electronic Stethoscope? Every Philips Electronic Stethoscope is warranted against defects in materials or workmanship for one year from the purchase date.

Is there an extended warranty for the Philips Electronic Stethoscope? No, the standard warranty is one year from the purchase date.

If someone inadvertently hits the Philips Electronic Stethoscope against a hard surface, will it damage it? No, the Philips Electronic Stethoscope is made of impact-resistant materials. Hitting the stethoscope against hard surfaces during normal use will not damage the stethoscope.

Is it safe to use the Philips Electronic Stethoscope in cold and hot weather? You can use your Philips Electronic Stethoscope in temperatures of -5°C to 60°C. You can store it in temperatures of -40°C to 70°C.

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Using the Philips Electronic Stethoscope

How many volume levels are there, and how many decibels is each? There are four volume levels. Level 1 (the default volume) is the equivalent to acoustic level. Levels 2, 3, and 4 increase by seven decibels per level.

How does a customer know which volume level is selected? When you turn on the Philips Electronic Stethoscope, it automatically adjusts to Level 1. Since there are only four volume levels, you can always select Level 1 by pressing the \/ button three times or Level 4 by pressing the /\ button three times.

Can the electronic stethoscope be used on infants and children? Yes, the electronic stethoscope can be used on patients of any age and size.

Is there a pediatric diaphragm for the Philips Electronic Stethoscope? No, there is currently no pediatric diaphragm. The regular diaphragm can be used on infants and children.

Is it possible to connect the stethoscope to a computer? No, there is currently no external cable port connection for recording or downloading auscultation data.

Does the stethoscope have an external cable port so that other people can hear the auscultation? No, the Philips Electronic Stethoscope cannot currently be connected to an outside speaker.

Can you use the Philips Electronic Stethoscope with a hearing aid? The Philips Electronic Stethoscope is not compatible with hearing aids. However, many customers find that the amplification provided by the Philips Electronic Stethoscope is sufficient, so you may want to try removing your hearing aid.

Does Philips plan to offer an electronic stethoscope for people who are hard-of-hearing? At this time, Philips does not have plans to offer a hearing aid compatible electronic stethoscope.

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Helping Customers with Common Problems

What can I do if I require additional length? The Philips Electronic Stethoscope is available in two lengths: model M4530A (28"/71cm) and model M4534A (40"/102cm).

What should I do if the headset pressure is uncomfortable? To adjust the pressure of the headset in your ears, completely collapse the binaurals so the earpieces are crisscrossed. Then press and turn the large round button on the back of the neckpiece. To reduce the space and increase the pressure, turn clockwise. To increase the space between eartips and decrease pressure, turn counterclockwise.

What should I do if I can’t hear anything? Try the following:
  • Press the small black button on the top of the chest piece to ensure that the stethoscope is turned on.
  • Turn up the volume by pressing the /\ button.
  • Make sure the eartips are in the correct ears. The Philips logo should face the patient.
  • Try again. A loud noise may have activated Auto-Impact Muting.
  • If the lights are flashing simultaneously, replace the battery.


How can I reduce ambient noise? The Philips Electronic Stethoscope automatically filters ambient noise. However, if you need to further reduce ambient noise, decrease the volume by pressing the \/ button.

How can I reduce noise artifacts? To reduce noise artifacts, move away from cellular phones or other sources that may emanate an electromagnetic field.

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