IPod Touch connector, called "Lightning", which replaces the 30-pin dock connector on older iPhone, iPad and iPod models. The Apple Lightning connector has eight pins and all the signaling is digital. This new connector is smaller than the previous one allowing for a slimmer form factor. Apple Lightning cables have duplicate pins on both sides of the plug, this makes the plug reversible. Various accessories are available to connect the Apple Lightning connector to the older 30-pin dock connector or USB, although not all old accessories will work, because the lightning connector cannot handle analog signals. , there are six types of
IPhone placement of the microphone and speaker on the base on the unit—the speaker is on the right. Volume controls are located on the left side of all iPhone models and as a slider in the iPod application. The 3.5mm TRRS connector for the headphones is located on the top left corner of the device for the first five generations (original through 4S), after which time it was moved to the bottom left corner. The headphone socket on the first-generation iPhone is recessed into the casing, making it incompatible with most headsets without the use of an adapter. Subsequent generations eliminated