The Product which u see on top is iPhone 4G Head phone Flex.
iPhone 4G Head phone Flex is a high quality and affordable repair part.
If your iPhone 4G having issues with hearing sounds through
Headphones you can replace it with below Product.
Headphone Flex is designed to work perfectly with your iPhone 4G.
The image below use to present product is just for reference
actual product will be different from image.