To change the volume do the following:
Press Menu
Scroll to Settings, press Show
Scroll to Audio, press Show
Using the scroll to increase the volume
Once happy, press Menu and it will present the option to save, press Show to save settings
*Please note this is reset if the device is rebooted*
To change the Font Size do the following:
Press Menu
Scroll to Settings, press Show
Scroll to Display, press Show
Scroll to Font, press Show
You will then be able to select up and down the font size
Once happy press the Menu and it will present the option to save, press Show to save settings
**Once saved for a larger Font you will need to turn off the device and turn it back on**