Apple (AAPL - Get Report)  launched the next generation of its popular AirPod wireless headphones on Wednesday morning, featuring 50% more talk time, hands-free Siri compatibility and the option of a wireless charging case. 

AirPods have been a big success for the tech giant since their launch in 2016, with analysts estimating Apple will sell about 50 million of them this year. Apple does not break out sales of the devices.

The new devices were available to order on apple.com and the Apple Store app starting on Wednesday and will be available at Apple Stores next week. The second-generation AirPods with the standard charging case costs $159, the same price as the first-generation devices, while the AirPods with the wireless charging case option costs $199 (current AirPod owners will be able to buy the wireless charging case separately for $79). The latest AirPods will also feature the ability to call up Siri using just voice, rather than having to tap one of the pods.    

"AirPods delivered a magical wireless experience and have become one of the most beloved products we've ever made. They connect easily with all of your devices, and provide crystal clear sound and intuitive, innovative control of your music and audio," said Phil Schiller, Apple's senior vice president of Worldwide Marketing in a press release.

The company said it developed a new H1 chip specifically for the headphones, allowing the AirPods to connect more quickly to devices and other performance efficiencies. 

The AirPods will come with either the standard charging case or a new wireless charging case. Each case holds additional charges for more than 24 hours of total listening time. 

Apple shares were down 0.3% to $186.01 in early trading on Wednesday. The company also announced two new iPads earlier in the week. 

Apple is a key holding in Jim Cramer's Action Alerts PLUS charitable trust

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