you can use this sound as message notification sound, correct answer sound, positive signal. Sound Also, short versions are absolutely free. Message Notification Sound Download package of this track contains all WAV and MP3 versions as shown in preview:

Message Notification Sound 1 – 0:9

Message Notification Sound 2 – 0:9

Message Notification Sound 3 – 0:9

Message Notification Sound 4 – 0:13