Introduction
Top section:
– Braille display available in 20 or 40 cells (8 dots per cell),
– Navigation cursors with double-tap function, located above each Braille cell,
– A 10-key keyboard – 8 keys above the row of navigation cursors and 2 thumb keys below the row of Braille cells.
– 2 sets of keys with 4 buttons, located on either side of the Braille cell row.
Bottom:
– A cover screwed onto the device provides access to the SD card. For technical support only.
Left side:
– A small hole allows a paperclip to be inserted should the system need to be reset due to a fault,
– A USB Type-C port required to charge the device or connect it to another system,
– A 3.5 mm jack output for connecting headphones,
– On/off switch

Features
– 20 or 40 Braille cells
– 20 or 40 navigation keys
– Braille keyboard with 10 keys
– 2 sets of keys with 4 buttons
– Processors: STM32L1 / ARM Cortex-A53, quad-core, 1.4GHz,
– RAM: 512MB LPDDR2 (900MHz),
– 64GB SD card,
– Wi-Fi: 2.4GHz 802.11ac dual-band,
– Bluetooth: 4.2 LS BLE,
– Audio out: 3.5mm jack,
– Battery: 3.7V 6000mAh (22.2 W),
– Fast charging with external power supply via USB-C adapter (Universal PD 2.0 protocol),
– Charges to 30% in 25 mins, 80% in 1h 30 mins.
– Battery life: approx. 14 hours
– Dimensions: 235 (20 cells) / 365 (40 cells) x 105 x 27 mm,
– Weight: 500 g (20 cells) / 600 g (40 cells).