Widex E_F2 440 Hearing Aid Set with a COM-DEX and Batteries Tested. The COM-DEX needs a charging cord (USB to Micro). Instructions are available on Widex site.Testing included placing new batteries in hearing aids, charging. This item is in the category "Health & Beauty\Medical & Mobility\Daily Living Aids\Hearing Assistance\Hearing Aids". The seller is "topsock2" and is located in this country: US. This item can be shipped to United States.