Unscrew, twist the cap of the bicycle camera:
-
Chemistry, ground powder on the table
-
Bagging in the bag
-
Stop, movement, Passenger elevator
-
Bicycle rear wheel ratchet
-
Metronome
-
Sine wave (975Hz)
-
Blink, Daylight lamp, turn on
-
Bone fracture
-
Rustling leaves, Fussing in the thicket
-
Small crank rotation
-
Electronic bird singing
-
The receptionist trolley passes by
★★★★★