Ultra portable fitting solution

Inspired by advanced Audiometry, Real-Ear Measurement & Hearing Instrument Testing systems, but wrapped in a small package.

A future safe solution

CallistoTM is an ultra portable PC-based modular system that accommodates the needs of the traveling clinician doing home visits or traveling between different sites, providing all the necessary air, bone and masking features required for basic or advanced diagnostic and clinical use.
CallistoTM offers the same intuitive user interface as our Affinity 2.0 and Equinox 2.0 software suites making it ideal as a second device in the clinic.
A future safe solution that can easily be upgraded to accommodate future needs and trends within the audiometric world.
  • Combines advanced testing and counseling
  • Tailored customizable test routines
  • Merge Video Otoscopy into the suite
  • Ideal for travelling and in-home visits
  • Small footprint and lightweight (565g.)
  • Powered via USB
  • Leave CallistoTM in the bag while testing
  • Optional dedicated carrying bag on wheels
  • Optional dedicated test box - TBS10

Mix and match modules

Mix and match Audiometry, REM, VSP an HIT to customize your CallistoTM through our dedicated software modules to create your personal combination.
Audiometry module


Audiometry module for advanced diagnostic testing in a simple and user-friendly layout.
  • Customizable test setups, printouts and report templates
  • Visual and auditory counseling tools (Speech Banana, Hearing Loss Simulator, Master Hearing Aid)
  • Digitized word lists from your PC harddrive
  • Audiogram historical comparison overlay
  • High Frequency Audiometry
  • Masking Help
  • TEN test
  • Customizable counseling overlays
  • QuickSINTM (optional)
Hearing Instrument Testing


Hearing Instrument Testing allows for technical verification of hearing instruments.
  • Frequency Range: 100 – 10.000 Hz
  • Built-in test sequences based on IEC and ANSI standards
  • Test sessions can be saved and recalled later for direct comparison
  • Compatibility with TBS10
  • Coupler based hearing aid fitting (RECD inside TBS10 test box
Real-Ear Measurement


Real-Ear Measurement is an essential verification tool ensuring precise hearing aid fittings.
  • Multiple speech stimuli, in several languages, including ISTS and Live Voice
  • On Top mode for hearing aid fittings
  • NAL-NL2 and DSLv5
  • Open fit capable
  • Directionality testing
  • Switch between HL and SPL views
  • Coupler Base option for Coupler Based Verification
  • Binaural REM
  • Compatible with AutoFit, REMfit and EXPRESSfit
Visible Speech Mapping


Help the hearing aid user to absorb and understand what they need to know and make the fitting process a positive experience.
Visible Speech Mapping combines counseling with real-ear measurements and helps to visually explain the features, benefits and performance of hearing aids.
Counseling is an essential part of the client centered hearing aid fitting process. This is where Visible Speech Mapping plays a vital role, as it engages the client with dynamic, graphic examples next to the real-ear measurement information. This is why Visible Speech Mapping is becoming more and more popular with hearing healthcare professionals and their clients.
Watch the film
2nd Generation ASSR
Robert H. Margolis
The B-81 bone vibrator provides higher output and lower harmonic distortion compared to the B71. This may offer a signi cant clinical advantage. Conductive components of severe hearing losses that cannot be measured with the B71 vibrator may be measurable with the B-81. This is important for medical diagnosis and treatment, programming hearing aids, and determining cochlear implant candidacy.
Professor Emeritus, University of Minnesota Robert H. Margolis


Hearing Aid Analyzer

Affinity 2.0

Customize through dedicated software modules for Audiometry, REM, HIT, and Visible Speech Mapping.
Clinical Audiometer

Equinox 2.0

All the necessary air, bone and masking features required for advanced diagnostic and clinical use.
Clinical audiometer


Full two-channel audiometer with all the advanced features and functions needed by a modern clinic.
Diagnostic audiometer


AD629 provides all the necessary air, bone and masking features required for basic or advanced diagnostic and clinical use.
B81 and B71: Compatible with all headbands as well as high-quality cables. The industrial standard of audiometric bone conduction testing. (B71 is optional).
Some features may not be available for all countries or all areas and product specifications are subject to change without prior notification. Please contact us to find out more.
Find ways to buy: Visit an Interacoustics sales office, call 1-800-947-6334, or find a distributor.

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Language: United states