3 ms·
A lot of trucks are using white noise instead of 1khz for backing up nowadays. https://en.m.wikipedia.org/wiki/Back-up_beeper https://en.m.wikipedia.org/wiki/Ba
by Akronymus 4y ago
A lot of trucks are using white noise instead of 1khz for backing up nowadays. https://en.m.wikipedia.org/wiki/Back-up_beeper https://en.m.wikipedia.org/wiki/Back-up_beeper