HeaWea MicroGen automatically overwrites the previous frequencies to avoid confusion. Was this article helpful to you? Related Articles Can I charge the MicroGen with a 5v 2.1amp USB charger? Is it safe to use the MicroGen on kids 3 years of age? Can I use Zapper while taking medications? Can I use polyethylene to protect TENS pads? How to find the correct port number for your MicroGen? Can MicroGen help fix histamine intolerance? heaweasupport Posts Website Leave a Reply Click here to cancel reply. Name (required) Email (will not be published) (required) Website Comment