![]() ![]() Smart clocks have the most sound features, including preprogrammed alarm options, radio channels that can be grouped as favorites, and streaming services that users can connect to via their Wi-Fi network. Some digital clocks come with an integrated radio feature for users who prefer music or talk to wake up to. ![]() Digital clocks also use sound alarms but may have more options to choose from than analog clocks, including gentler alarm sounds such as birdsong and music. Many analog clocks use beeping noises, which can sometimes be adjusted for length and loudness level, typically between 30 and 90 decibels (dB), though the loudest alarms can go as high as 113 dB.
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