HHi Tina, found your Onway foldable 7 speed bike on Amazon, so this bike is coming directly from a manufacturer in China. Amazon shows it as currently unavailable, so I'm curious if you have actual shipping information on your ebike? The info there doesn't indicate what brand of motor you have; however, if the specs are correct, the Lithium battery pack comes from Samsung and that's a safe, high quality battery. Also, the description mentions a Shimano Nexus internal geared rear hub which is a nice, quiet, easy to shift system and that's a plus.
Sounds like a decent basic setup and we would all like to hear more about it once it arrives. If you have some local bike shops nearby, contact them about help assembling the bike or for future service; it's handy to have that connection worked out before the bike arrives and you need the help.