11.Other functions of M3 Pro
a. Sound recorder: the built-in microphone supports recording files playing;
b. Calculator: supports simple calculation of addition, subtraction, multiplication, division and percentum calculating as well;
c. E-book reader: TXT formats only.
d. Picture preview: JPG, PNG, BMP formats supported.
Notices: the M3 Pro is featured with Linux system so that it does not support third-party applications.