13
the battery will charge in about 4 hours. Charging takes less time if the battery is only partially
discharged. You can charge the battery and use the Seika Braille notetaker simultaneously although
the battery may take longer to charge. Please ensure that the battery charges correctly, you can only
charge in ambient temperatures between 41 and 95 degrees Fahrenheit, or 5 to 35 degrees Celsius.
1.4 Hardware Specifications
Memory extension: Micro SD Card and USB flash disk.
CPU: ARM.
Battery: Lithium rechargeable battery.
Keyboard: 8-Dot Perkins style Braille keyboard, navigation keys, cursor routing keys.
Braille display: refreshable 8-Dot Braille cells.
Wireless: Bluetooth.
Interface: USB flash disk socket, USB Type-C socket, Micro SD card slot.
2. Basic Functions of the Seika Braille notetaker
2.0.1 How to Use the Commands
All of the commands used on the Seika Braille notetaker are comprised of different combinations of the
Braille keys. In this user manual, the "+" sign is used to indicate key combinations. For example, "Space
+z" indicates that the user should press the Space key and letter z braille (dots 1-3-5-6) simultaneously
and then release them at the same time. You can execute most commands by pressing the "Enter" button
