Charge-Lock-Camera Sounds.
This theme changes the following sounds: Charging - A pleasant chime when you plug in the phone. Locking - A little chirp when you lock the phone. Camera - A short and faint ding when you take a picture.
Note: Unlocking - The little lock chirp is installed in the /var/ mobile directory and can be used by merdok's UnlockSound7 tweak that brings back the unlock sound to iOS 7. Select 'Custom Sound' in the UnlockSound7 settings and make sure the 'Custom Volume' is off.
It's a sound theme so there are no screenshots.
Apply with Winterboard.