Activision The Voice - Manual (Page 7)

SING-OFF - Two players take turns singing sections of a song. Each
player has their own pitch-board and lyric display. Aim to score higher
than your opponent.
VOICE PARTY - Enjoy the game with several people using Voice Party
mode. This mode supports up to two microphones.
AUDITION FEVER - Players sing head to head and score a bonus
each time a judge votes for them.
BATTLES - Party battles are very similar to the battles in Season
mode. Take part in a sing-off to steal points from opponents at specific
“spotlight” sections of the songs.
GAME MODES