We do not recommend that you use any device other than the MiraMate Big Magic companion main unit to connect to the Big Magic mat in order to avoid any unexpected malfunctions.
Yes, we welcome you to earn rewards and points by becoming a member of MiraMate. Every 100 points can be exchanged for 1 USD. Check out the details here: https://www.miramate.com/membership-program/
PEMF coils can be placed on any part of the body, but for your comfort we recommend that you avoid direct contact with painful wounds, placing coils near the wounds is also known to accelerate healing.
Are MiraMate products safe to take on board an aircraft?