Kuo: AirPods With Wireless Charging Case Expected in Early 2019, All-New Model in Early 2020 - MacRumors
AirPods Pro 2 might bring a feature that Samsung was experimenting with in 2018 - PhoneArena
Apple AirPods 2 likely to borrow a feature from Samsung's 2018 Gear IconX - Times of India
AirPods - Wikipedia
Amazon.com: Happypapa Airpods Case Designed for Apple AirPods 2 & 1 Full Protective Case Cover with Keychain Cute Girls Men Durable Shockproof Anti Lost Case for Airpods Charging Case (Blue Marble) : Electronics
AirPods 2 (2019) review with Wireless Charging Case - 9to5Mac