The iPhone's headset are similar to those of most current smartphones, incorporate a microphone. A multipurpose badge in the microphone can be used to play or pause music, skip tracks, and reply or end phone calls without moving the iPhone. The 3.5 mm TRS connector for the headphones is situated on the top left corner. The headphone socket on the original iPhone is buried into the casing. The recess is narrow when compare to many headphone jacks, making them unsuited without the use of an adapter. The iPhone 3G has a flush mount headphone socket.
Wireless earpieces that use Bluetooth knowledge to converse with the iPhone are sold unconnectedly. It does not support stereo audio.
The loudspeaker is used both for handsfree operation and media playback, but does not hold voice footage.
Composite or part video at up to 576i and stereo audio can be output from the dock connector using an adapter sell by Apple.