What's the name of Apple's unplugged charger?

According to the inquiry, official website of Apple Group shows that Apple's unplugged charger is called wireless charger. Wireless charger refers to the charger that is connected to the terminal equipment that needs charging without the traditional charging power cord. With the latest wireless charging technology, wireless charging technology won 20 patents in 2007, and wired charging of various devices using charging base stations, mobile phones, MP3 players, power tools and other power adapters will no longer exist.