It is an entire headphone audio system for iPhone 4, containing the headphone jack and volume controls. If your iPhone 4S no longer plays music through earphones, or unable to adjust volume, you need to replace the part.

• It comes with earphone plug, internal volume button flex cable
• It is disassemled from OEM iPhone 4s, just like brand new
• Replace your damaged or non-working flex cable with a new one
• Each item will be checked and in good condition before shipping
• Highly recommend professional installation. We will not be held responsible for any damages to your cellphone/mobile phone that you may cause during the changing of replacement parts

Compatible with:

• iPhone 4

Package included:

• 1 x For iPhone 4 Headphone Audio Jack Volume Switch Flex Cable Ribbon (OEM, not brand new) - Black