The iPhone Stereo Headset was introduced in 2007 and was bundled with the original iPhone and iPhone 3G, and featured a control capsule in-line with the right earbud’s wire with a microphone and a single button, actuated by squeezing the unit, which can be programmed to control calls, presentations, music and video playback, launch Siri, or take pictures with the Camera application. There have been many reports of moisture problems with the remote/mic.

EarPods were introduced on September 12, 2012 and feature a redesign with no silicone tips, less visible metal, and a plastic outer shell. They first shipped with the iPhone 5 and feature a remote control and microphone. They also shipped with the iPod Touch (5th generation) and iPod Nano (7th generation) without a remote and microphone. EarPods are also individually sold with a carrying case, while the version bundled with the iPod Touch (5th generation), iPod Touch (6th generation) and iPod Nano (7th generation) only have basic biodegradable packaging, due to their lack of a remote and mic.

A microphone icon was added on the previously unmarked back side of the control capsule on EarPods with a microphone. They are compatible with iPhones from the iPhone 3GS to iPhone 6S, the iPod Touch (2nd generation) and onwards, and all models of the iPad, iPad mini, and iPad Pro, except the third and fourth generation iPad Pro. They require iOS 2.2 and onwards for iOS devices but are not compatible with the original iPhone, iPhone 3G, or iPod Touch (1st generation) due to sound problems. They are also compatible with most Android devices and computers.

Apple’s original earbuds shipped with the original iPod, released on October 23, 2001. They were never given a formal name and were referred to variously as “iPod headphones” and “the iPod’s earbud-style headphones”. They were bundled with two pairs of foam covers. The second generation added a plastic slider to allow the user to limit the gap between the wires. The third generation were redesigned with a slightly longer strain relief, a slightly smaller speaker grill, and the left/right marking being moved from the outside to the inside.