IPod shuffle (4th generation)

The 4th-generation iPod shuffle is an audio player that was developed by Apple and released on September 1, 2010. It was the final iteration of the iPod shuffle lineup.

Features
The fourth generation features the return of clickable track and volume controls from the first two generations. The control pad is 18% larger than the second generation of iPod shuffle, and the dimensions of the device are 29 mm × 31.6 mm × 8.7 mm (1.1 in × 1.2 in × 0.3 in) and it weighs 12.5 g (0.4 oz).

The model also features VoiceOver from the third generation, now with a devoted physical button, in twenty-nine languages (Chinese, Czech, Danish, Dutch, English, Finnish, French, German, Greek, Hungarian, Italian, Japanese, Korean, Norwegian, Polish, Portuguese, Romanian, Russian, Slovak, Spanish, Swedish, Thai, and Turkish). It also features Genius, and can handle multiple playlists. Like the previous generation it supports {MP3,, AAC, , Audible (formats 2, 3 and 4), WAV, AIFF and Apple Lossless, and its battery lasts for 15 hours of music, according to Apple.

Product history
On August 27, 2010, Apple won a patent for a “Very small form factor consumer electronic product”, which described the parts and processes that went into making the ultra-portable music player, the iPod shuffle. The 4th generation iPod shuffle was originally released during a special event on September 1, 2010 in five colors (silver with a black control pad, and green, blue, orange, and pink with a white control pad).

Updates
On September 12, 2012, Apple held a special event to formally introduce the iPhone 5, along with an updated iPod lineup with new models. However, the iPod shuffle remained unchanged except for seven new color options (silver or "Slate" black with a black control pad, or green, blue, pink, yellow, and purple with a white control pad), as well as a edition model with a white control pad. Unlike the second generation, the iPod does not come with a dock, but like the third generation, comes with a 45 mm USB Cable. The included in-box headphones do not feature the remote control, but the device supports them.

On September 10, 2013, to coincide with the release of the iPhone 5S, the "Slate" color option was replaced with "Space Gray". On July 15, 2015, Apple refreshed the iPod shuffle in 6 colors (blue, pink, silver, gold, space gray, and Product Red), in line with the colors of the 6th-generation iPod touch released at the same time.

Discontinuation
On July 27, 2017, the iPod shuffle and nano lines were discontinued.