There are two hints on the product page that suggest that there is no IP address at all - operating system is not specified (whilst it is for other products) and flash memory size is 4 MB which is really low. So the only administration interface seems to be the sync button.
If I remember correctly that model has no user interface, all of the device control is by way of the pushbutton and PoE on/off switch. You may be able to communicate with them using the Qualcomm open-source PLC utilites, although there is no real need to.
It looks like some kind of fraud =( Yes they do not write ROS version on the page with device details but
who can expect to find an ACTIVE device made by Mikrotik but without RouterOS?
I just replaced one unmanaged bullshit made by TPLink with another one but made by Mikrotilk =(