Specification Brand : Philmore BulletPoint1 : Brand new crystal radio earphone with 3.5mm plug. BulletPoint2 : Use these for crystal or simple transistor radio design projects. BulletPoint3 : Very sensitive with high impedance, over 100 megohms. BulletPoint4 : Molded plastic shell and 7-ft cord. BulletPoint5 : Philmore quality you can trust. Color : Light Brown CompatibleDevices : Earphone ConnectivityTechnology : Wired ConnectorGender : Male-to-Male ConnectorType : Auxiliary ExternallyAssignedProductIdentifier1 : 038975307473 ExternallyAssignedProductIdentifier2 : 0038975307473 IndoorOutdoorUsage1 : outdoor IndoorOutdoorUsage2 : indoor ItemName : Philmore Crystal Radio Earphone, 3.5mm Plug, 7-Ft Cord, High Impedance 747 ItemPackageDimensions_Height : 10.16 centimeters ItemPackageDimensions_Length : 2.54 centimeters ItemPackageDimensions_Width : 4.572 centimeters ItemShape : Round ItemTypeKeyword : headphones Manufacturer : LKG Industries Material : Plastic ModelNumber : 747 NumberOfItems : 1 PartNumber : 747 ProductDescription : Brand new crystal radio earphone with 3.5mm plug. Use these for crystal or simple transistor radio design projects. Very sensitive with high impedance, over 100 megohms. Molded plastic shell and 7-ft cord. Philmore quality you can trust. ProductSiteLaunchDate : 2016-01-17T03:20:50.113Z SupplierDeclaredDgHzRegulation : not_applicable UnitCount : 1