所以需要耳機本身能存儲音樂的，不用從陸基手機BT Stream

來源: 網戀無罪 於 2023-01-31 12:32:35 [] [博客] [舊帖] [給我悄悄話] 閱讀數 : (564 bytes)
回答: 好象藍牙信號水中不好 ：） 由 網戀無罪 於 2023-01-31 12:22:07

Bluetooth (BT) is a standard for communication between devices, and can be used to send audio from a source (like an iPhone) to a receiver (like BT headphones). All BT devices use 2.4GHz radio frequency—which does not work well in water. This is due to laws of physics, as water molecules attenuate the signal. When any Bluetooth device is put underwater, the range is just few inches. Also, Bluetooth is a low-power system and the range in air is about 30ft/10m.

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