Are there any safety warnings I should be aware of when using these earphones?
Do not wear the earphones continuously for more than 6 hours, especially at maximum volume, and never wear them while riding or driving, as this is illegal in some countries. Additionally, do not use the device during thunderstorms, and avoid exposing the product to temperatures above 75°C or below -40°C for extended periods.
From the official Zte True Wireless Stereo Bluetooth Earphones manual, page 1
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