The One Amplified Stethoscope replacement Charging Kit


Thinklabs The One


  • The smallest, most powerful stethoscope in the world
  • Fits in the palm of your hand
  • Amplifies over 100X
  • Uses audio headphones


The icon of medicine has changed. The One has a standard 3.5mm jack so you can connect high quality headphones instead of old tubing style binaurals.

You get better sound, more comfort, a more compact stethoscope and the choice to use the headphones of your choice.

Order includes Thinklabs studio quality In Ear Headphones, with excellent bass for heart sounds and crystal-clear treble for music enjoyment.

Designed for high power output, The One has dedicated headphone amplifiers, one for each channel. Voltage doubling charge pumps provide extra headroom for low distortion reproduction of S1 and S2 heartbeat peaks.

The headphone amplifiers have sufficient power to drive low-impedance audio headphones, producing 45.2mWatts.

Competitive stethoscopes operate on lower voltage, use a single amplifier and high impedance speaker, resulting in clipped heartbeats at significantly lower power output. The One allow you to listen with multiple filter choices.

You can also set two that you use most as “favorites” that are super quick to select. So you’ll have both choice and speed. Ranging from very low frequency (low pitched sounds such as S3), to higher frequencies (lung sounds) and a few in between.

The One uses a rechargeable Lithium Ion battery so there’s no need to replace batteries. The USB-style charger cable is included, along with compact world-wide AC charger (100-240V).

The battery capacity has been designed to require only one or perhaps two charge cycles per week.

Thinklink provides a connection between The One and your mobile or laptop devices to capture and send sounds via iPhone, iPad, Android devices and Mac/PC. Easily switch between listening to patients or playback recordings.

Thinklink is included with The One. It works with all previous Thinklabs stethoscopes.


  • Thinklabs The One Digital Amplified Stethoscope
  • Thinklabs Studio Performance In-Ear headphones.
    • The One can be used with any high quality headphones
  • Thinklink connection system for iPhone, iPad, Android, PC/Mac
  • USB-type Charger 100-240V
  • Pocket carrying case
  • 2 Year Thinklabs Warranty

One was designed entirely by Clive Smith in Colorado, USA. It took over three years of painstaking attention to every detail.

The One is built from the finest components – machined aluminum which is hand-polished and chrome-plated to reduce noise, all done by craftsmen in Denver, Colorado.

The display lens is imported sapphire crystal, as you would find on a Rolex watch. The electronics is built on precision robotic production lines in China, which today leads the world in electronics production.

The headphones are made to Thinklabs specifications, tuned for extreme bass to reproduce heart sounds and with crystal-clear treble so they may be used for music pleasure, reflecting Smith’s passion for music.

These sub-systems, curated from meticulously selected global sources, are then assembled in Colorado USA.

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The One Amplified Stethoscope replacement Charging Kit

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