PC-based diagnostic


Inventis Cello versatile design
Cello and Maestro Control Panel
Inventis Cello bone and speech audiometry exams
Hang Cello on the wall as a little masterpiece
PC-based diagnostic


Cello is a computer-controlled diagnostic audiometer, capable of performing fast and accurate air, bone and speech audiometry exams, as well as several additional tests including QuickSIN™, HF audiometry, and video-VRA. Cello is ideal for anyone unwilling to compromise on comfort and user experience. 


Besides the standard audiometry exams, Cello also performs Hughson-Westlake automated audiometry, high-frequency pure tone exam, speech audiometry, QuickSIN®, SISI, Stenger and includes a 2 channel Master Hearing Aid.


With Cello, in few minutes you can also build a video-VRA system with unlimited possibilities for customizing the images and videos used as reinforces. Everything is controlled through the Maestro module, simply connect up to three displays to your computer to provide the reinforces. 


Connect Cello to the USB port of your Windows® computer and you are ready to go: no driver and no additional cable required. You can control Cello through the Maestro’s amazingly user-friendly interface, available also for Noah.

Inventis Cello changeable colorful and stunning magnetic covers

Available signals Stimulus: pure tone, warble tone
2 external inputs and USB audio for speech audiometry
MIC input for live speech audiometry
Masking: NBN, WN, SN
Signals specification Attenuator step: 1, 2 and 5 dB
Presentation: Continuous, Pulsed (0.5, 1 and 2 Hz)
Warble: 5 Hz sin wave modulating signal
Available outputs and transducers AC: Headphones (TDH-39 / DD45) HF headphones (HDA-300 / DD450) Insert earphones (ER-3 / IP30)
BC: B-71 bone vibrator
Free field
Insert masking earphone: IME-100
Available tests
  • Pure Tone audiometry (HL and UCL)
  • Auto threshold (modified Hughsone-Westlake)
  • HF audiometry (optional): from 8 to 20 kHz (18 and 20 kHz not displayed in the audiogram)
  • Speech audiometry (SRT, WRS, MCL, and UCL)
  • SISI test
  • Stenger, with pure tone or speech stimulation
  • 2 independent channels Master Hearing Aid
  • QuickSIN® test (optional)
  • Visual Reinforcement Audiometry (VRA) and Conditioned Play Audiometry (CPA) test (optional) with video reinforces
Intensity AC: -10 to 120 dB HL
BC: -10 to 80 dB HL
Frequency range 125-8000 Hz
8-20 kHz (opt.)
Patient-operator communication Talk over: external microphone included
Talk back: through monitor headset (included); patient microphone included
Patient response trigger
Monitor signal Both channels monitored through the monitor headset (included)
Calibraiton Validity: 12 months
Separated calibration tables for each type of transducer (AC, AC-INS, AC-HF, INS-MASK, BC, FF)
All the parameters stored in the device through a dedicated software
Computer interface Connection: USB (driverless)
Compatible software: Inventis Maestro
Minimum requirements: refer to Maestro software specifications
Power supply Maximum consumption: 10 Watts
Power supply: 6V, 2A cont., through an external medical grade 100- 240 Vac 50/60 Hz power supply
Mechanics Size (WxDxH): 30.8 x 21.7 x 6.7 cm / 12.1 x 8.5 x 2.5 in
Weight: 1.3 kg / 2.9 lbs



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Tel.: +39.049.8962.844

North America

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Titusville FL, 32780

Toll free: +1.844.683.6847


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