DoubleCheck XL – Talking Desktop Calculator

Advanced talking desktop calculator for the blind and visually impaired: Extra Large Buttons/Display, Arithmetic and Conversions.

SKU: 21005 Category:


Empowering the visually impaired, our cutting-edge calculator with voice output features an extra-large display and buttons, seamlessly integrating basic arithmetic, commercial, and conversion functions into one accessible device.

What sets DoubleCheck XL apart is its versatile conversion mode, which allows users to seamlessly switch between different units of measurement for volume, length, weight, temperature, and even currencies. With just a few keystrokes, DoubleCheck XL simplifies the conversion process, providing a quick and efficient solution to everyday measurement challenges.

And DoubleCheck XL is not just about numbers – it is a multi-functional tool that also speaks and displays the time and date on demand. This added feature enhances its utility and makes it a valuable companion for a wide range of tasks. With DoubleCheck XL, you get more than just a calculator; you get a sophisticated tool that simplifies calculations, conversions, and timekeeping in one compact device.


  • Extra-large 10-digit display
  • Extra large buttons (1.5 x 1.5 cm)
  • 10 storage spaces
  • Reciprocal value
  • Percentage calculation
  • Squaring, raising to the power, and taking roots
  • Calculate compound interest, cash value, and annuities
  • Conversion of currency, temperature, volumes, length and weight
  • Date and time with alarm function
  • Keylock

Technical data

  • Voice output: natural voice, digitized
  • Headphone connection: 3.5 mm jack mono/stereo
  • Power supply: 4 x 1.5V AA batteries or power supply
  • External Power supply: 3.4/1.35 mm jack
  • Operating temperature: 0 – 40° Celsius
  • Dimensions (l/w/h): 210 x 170 x 45 mm
  • Weight: 487 g (including batteries)
  • Color: Royal blue

Scope of delivery

  • Doublecheck XL device
  • 4 x 1.5V AA batteries
  • Operating instructions Printed and on CD

Additional information


Croatian, Czech, Danish, Dutch, English, English – US, Estonian, Finnish, French, German, Italian, Japanese, Norwegian, Polish, Portuguese, Romanian, Russian, Slovak, Slovenian, Spanish, Swedish


Pdf Icon User Guide – English


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