For all iphone model and ipod with dock connector (except ipod shuffle).
Sync usb 2.0 cable and audio line cable two in one. You can use it to charge your ipod / iphone, transfer data, listen music with speaker in your iphone / ipod. You can use it to connect your iphone / ipod to Audio device like car speaker, generic speaker with 3.5mm jack.
Length about 1.2m, high quality. 3.5mm standard stereo jack.