RIP TUNES MP1872 Instruction Manual page 14

B) After highlighting the picture, press the M button to view in full screen.
C) Press  or  to go to the next or previous picture.
D) Press the M button to return to the picture browser.
Press  button to start the slideshow.
Slideshow can be set to play in intervals of 2, 4, 6, 8 or 10 seconds. To change
the duration, go to Settings > Picture Settings > Auto Play Time. Choose your
desired speed and press the M button.
eBook
Select eBook in the main menu.
A) Press  or  buttons to select the eBook you want to read.
B) Press the M button to start reading.
C) Press  or  button to skip to the next or previous line.
D) Press the ● button to display the save bookmark list. Press  or  buttons
to select the bookmark, and then press the M button to save it.