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Apple CEO Tim Cook speaks during a special event at the company's headquarters of Apple Park in a still image from video taken in Cupertino, California, Sept 15, 2020. [Photo/Agencies]

Areas with centralized supply should stick to the established water treatment standards, while for regions where smaller projects are prevalent, safe drinking water should be free from visible impurities and won't cause health issues if consumed over the long run.

Apple today unveiled its own voice-activated smart home speaker, the HomePod.

Apple shipped the most wireless earphones in China, occupying an 18.1 percent market share, followed by Huawei (10.1 percent) and Xiaomi (8.3 percent). The automatic pop-up, smart wear detection functions and the deep adaptation of TWS with mobile phone systems have also strengthened the brand stickiness of original handset users.

Apple is seeking lidar units that would be smaller, cheaper and more easily mass produced than current technology, the three people said. The iPhone maker is setting a high bar with demands for a "revolutionary design," one of the people familiar with the talks said. The people declined to name the companies Apple has approached.