About recording people secretly, the system provides automatic beeping to signal recording is in progress.
A second series of codelike beeping or buzzing sounds returned the couple to full consciousness.
In addition, since each has its own transmitter, it can reply by radio as well as beeping and flashing a light to attract attention.
Currently, if minibuses exceed 80 km/h, the speedometer will sound an audible warning signal (begin beeping) to the driver and passengers.
Common complaints included annoying beeping sounds and childrens constant worry over their pets well-being.
When the user goes to a covered area, the noticer ceases beeping.
At 0:19 a rapid beeping sound appears.
It is 6 seconds long of electronic beeping noises, believed to be the trade test transmission sound.
