HIMS Braille Sense U2 User Manual page 268

If you execute this function in a file that does not have a bookmark, the
Braille Sense U2 will display "There is no bookmark in selected file."
9.3.4.4 Go to Time
If you execute this function when you are playing a file, or when a file is
paused, it will move to a time that you specify, and begin playing the file.
To execute this function,
1) Press "Space-m (dots 1-3-4)" or "F2" and move to "Position" by
pressing "Space-4."
2) Press "Enter" on "Position."
3) Move to "Go To Time" by pressing "Space-4," and press "Enter."
4) Or, you can press "Enter-g (dots 1-2-4-5)" when playing a file, or
when a file is paused.
5) The Braille Sense U2 will display "Go to position: 0 minute."
6) Type in time that you want to go, and press "Enter." If you want
to jump to more than an hour, you can use "Space" or ":"
characters to distinguish minute from hour. For example, if you
wish to type 1 hour and 20 minutes, type the "1", "Space" or ":",
"20" sequentially. Also you can input 80 minutes by just typing
"80." If there is no "Space" or ":", the input value is dealt with the
minute.
If you type in a longer time than the total playback time, the Braille
Sense U2 will display "invalid time," and play from the paused location.
9.3.4.5 Go To Percent
While playing or in a pause status of file, you can move to the location
via a percent in a file.
1) While playing or in a pause status of file, press "Space-M (dots 1-
3-4)" or "F2" to call up the menu.
2) By pressing "Space-1" or "Space-4", move to "Position" menu.
3) Press "Enter". Or press "a (dot 1)"