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This function can turn on or off the sound output.
9-5 Setting TTS volume
This function can control the volume, speed and tone of TTS.
9-6 Checking power
The user can check power level of battery in HANSONE by using this function.
And also the user can check whether the DC adaptor is connected or not by
using this function.
9-7 Setting internet connection
The user can set or change the internet connection settings like IP address
using this function.
10. Keybaord learn
Using this function, the user can exercise keyboard input.
Especially this function is very useful for the Braille learning for the beginners of
Braille.
11. Information
This information contains copy right information and software version and after
service contact point.
