Description: hair dryer blowing while still.

Description: hair dryer blowing while moved back and forth.

Description: hair dryer blowing while moved back and forth.

Description: old window fan running and vibrating.

Description: single sound of a light switch flipped on or off.

Description: single sound of a light switch flipped on or off.

Description: single sound of a light switch flipped on or off.

Description: single sound of a light switch flipped on or off.

Description: single sound of a light switch flipped on or off.

Description: single sound of a light switch flipped on or off.