Key tone : See Keynote.

Example:


Taxonomy
Key Tone, PS3, Instruction Manual, use the key, system software, PlayStation 3, User's Guide, XMB, Usage Instructions, Language selection, Sony Computer Entertainment Inc, Sony Computer Entertainment, how to, Sound Settings, Photo, Music.

Defination from the web:
... Network. PlayStation®Network. Friends. Language selection. Settings > Sound Settings > Key Tone © 2009 Sony Computer Entertainment Inc. All rights reserved. ...