My Cable Mart MyCableMart 3.5mm TRRS Male to Female Port PVC Extender Shielded,4 Conductor, Gold Plat

3.5mm 4 Conductor MALE to 3.5mm 4 Conductor FEMALE Extender/Adapter. This adapter is a straight-through (pinned) adapter allowing you to connect into tight 3.5mm ports for certain smart-phone cases. Ideal for use with Smart Phone use with Credit Card swipers, or cables that have a thicker housing. Tested with "PAYPAL" and "INTUIT" card readers that need a 4 conductor connection. Will fit "MOST" OtterBox phone cases. However, due we do not guarantee it will fit "ALL" OtterBox casesFeatures and Specifications:Gold Plated conductorsOuter Diameter PVC Slim (male) End: 6.5mmOuter Diameter PVC Female End: 12mmOverall length (PCV end to end): 39.5mmPin Assignments: 1-1, 2-2, 3-3, 4-4RoHS and Reach Compliant