Microsonic Credit Application We’ve Made It Easy! Simply download the credit application and complete the form.________________________ GET CREDIT APP Email to: brenda@microsonic-inc.com Mail to: Microsonic Inc. | 2960 Duss Ave. | Ambridge, PA | 15003 Fax to: 724-266-6309 ________________________ Questions 800-523-7672 Custom Earmolds by Microsonic.