sell their products through Apple's retail outlets and resellers. Iovine believed that Beats had always "belonged" with Apple, as the company modeled itself after Apple's "unmatched ability to marry culture and technology." The acquisition was the largest purchase in Apple's history. During a press event on September 9, 2014, Apple introduced a smartwatch, the Apple Watch. Initially, Apple marketed the device as a fashion accessory and a complement to the iPhone, that would allow people to look at their smartphones less. Over time, the company has focused on developing health and fitness-oriented features on the watch, in an effort to compete with dedicated activity trackers. In January 2016, it was announced that one billion Apple devices were in active use worldwide. On June 6, 2016, Fortune released Fortune 500, their list of companies ranked on revenue generation. In the trailing fiscal year (2015), Apple appeared on the list as the top tech company. It ranked third, overall, with $233 billion in revenue. This represents a movement upward of two spots from the previous year's list. In June 2017, Apple announced the HomePod, its smart speaker aimed to compete against Sonos, Google Home, and Amazon Echo. Towards the end of the year, TechCrunch reported that Apple was acquiring Shazam, a company that introduced its products at WWDC and specializing in music, TV, film and advertising recognition. The acquisition was confirmed a few days later, reportedly costing Apple $400 million, with media reports noting that the purchase looked like a move to acquire data and tools bolstering the Apple Music streaming service. The purchase was approved by the European Union in September 2018. Also in June 2017, Apple appointed Jamie Erlicht and Zack Van Amburg to head the newly formed worldwide video unit. In November 2017, Apple announced it was branching out into original scripted programming: a drama series starring Jennifer Aniston and Reese Witherspoon, and a reboot of the anthology series Amazing Stories with Steven Spielberg. In June 2018, Apple signed the Writers Guild of America's minimum basic agreement and Oprah Winfrey to a multi-year content partnership. Additional partnerships for original series include Sesame Workshop and DHX Media and its subsidiary Peanuts Worldwide, as well as a partnership with A24 to create original films. During the Apple Special Event in September 2017, the AirPower wireless charger was announced alongside the iPhone X, 8 and Watch Series 3. The AirPower was intended