Does the Hi10Go tablet incorporates a microphone?

Hi everyone, i’m facing a problem with my Hi10Go tablet. Does the Hi10Go tablet incorporates a microphone? I’m trying to use it in video calls but i cant manage to use the microphone without some headphone with microphone incorporated. I can¡ find any info about the existance or inexistance of a microphone in the device,so maybe theres no microphone at all.
If there is a microphone installed, could anybody help me configuring it in order of making myself audible?
And if there isn’t any microphone, could someone confirm this?
Thanks in advance