Ecase eseries 9 mobileelectronics case waudio jack description accommodating the latest larger size smartphones including the iphone6 the eseries 9 case guarantees protection from threatening environmental conditions without sacrificing use of your device the built in headphone jack allows you to adjust the volume or answer a call with the controls on your earbuds and like all our waterproof cases lash points let you tether it to your jacket pack or pfd for security on any adventure