BAUM Engineering
Products and services for the blind and visually impaired
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Mantis Q40 braille display

The first–of–its–kind integrated keyboard and refreshable braille display

The Mantis Q40 is the first-ever Bluetooth® QWERTY keyboard and 40-cell refreshable braille display that you can pair with your screen reader or smartphone or simply use as a standalone device. Either way, you have braille at your fingertips, every time.

Mantis Q40

The Mantis Q40 is a complete all-in-one, laptop-sized QWERTY keyboard with a built-in, refreshable 40-cell braille display that you can pair with your screen reader or smartphone via Bluetooth and USB connections.

As you tap the keys on the laptop-sized Mantis, the refreshable braille line under the keyboard delivers braille reinforcement to your chosen screen reader simultaneously. The product is slim, lightweight and fits easily into a laptop sleeve. On the go, the built-in memory and Editor application allow you to turn it into a standalone braille reader and notebook. Once connected, access online libraries to upload your favorite books.

With the Mantis Q40, you no longer have to choose between a keyboard and a braille device. It's a truly innovative tool that makes it easier for you to get involved and get things done.

  • Qwerty keyboard with 40 cells braille display
  • Connects to 5 Bluetooth devices and 1 USB device simultaneously
  • Onboard applications to be productive like Daisy book reader
  • Compatible with several file formats including doc, docx, txt, brf, brl pdf and more
  • Access to online participating libraries including Bookshare
  • Battery life: 20 hours
  • Over 250 Onboard language braille tables

Weight & Dimensions

  • Device weight: 950 g (2.1 lbs)
  • Device dimensions (w x d x h): 290 x 170 x 20 mm / 11.4’’ x 6.69’’ x 0.78‘’
  • Removable battery


Low vision