Related Clues:

• Matched up
• Lip- -- (did karaoke)
• Matched, as dubbed dialogue to mouth movements
• Matched (up)
• Matched up, as a laptop and a smartphone
• Coordinated, as a phone and PC
• Made synchronous and adjust in time or manner
• In lock step (with)
• Updated the email inbox, say
• Matched, as movie sound and action