Office work, general noise:
-
Computer mouse movement
-
Hard disk, write, room noise, read
-
Matrix printer
-
Turn on, turn off the old computer
-
Computer keyboard
-
Turn on, turn off the hard drive
-
Repeatedly pressing a computer mouse
-
The USB flash drive is inserted, removed
-
Jet printer
-
Disc read, CD / DVD drive
-
Turn on, turn off the old monitor
-
Office work, general noise
★★★★★