Perkins Case

About the Perkins Case

Communication device for deafblind people communication.Device is in the form of a case in a set with an mobile application. Also, this device may be suitable for people with speech disabilities.This device:

  • ​helps the deafblind to communicate
  • gives access to information around them
  • helps to socialize in the professional field

​The principle of device operation can be described as follows:

In order to appeal to the user, simply press the button “Start Dialogue” on the phone’s display and the program will recognize your speech and literally transfer what you said to the deafblind person via the buttons located on the case by silent vibrations based on the Braille principle. To answer, the user just press buttons located on the case by Perkins keyboard principle and the typed message will be quickly converted to speech.

The application is based on the Google speech synthesizer & recognizer. It allows to use the device in any country and to communicate with a deaf-blind person in any language.

Here're results of the testings:

  • learning period is just 3-4 weeks
  • speech recognition speed is 36 words per minute
  • typing speed is 25 words per minute

Technical characteristics of the device


  • Total weight of the device: 86 gr. (3 ounces)
  • Charging from the AC adapter (110 to 240 V) or from the battery
  • Port for charging: Micro USB
  • Operating time: from 9 to 14 hours on the battery (600 mAh)


  • Works when the power is on — yes


  • Knowledge of Braille
  • Availability of an Android mobile phone
  • Application updating on​


  • The Case
  • Charging adapter (available interchangeable connectors: UK, US, EU, AU)
  • Manual in Braille


  • . The cost of the device is 390 CA $ + tax + shipping

​Ask your distributor about the availability of devices, you can always place an order in that way. If you want to place an order directly write to


  • Prepayment
  • Wholesale price from 10 devices

Necessary information:

  • User's hand circumference
  • Charging type


We are ready to provide you with free support on any issues. You can contact for support via e-mail, you can also send a request for repair to this address.