Two beeps from a electric till during a transaction.
A short high pitched cash register beep
Till or check out error at cash register.
Cash register drawer closing or a drawer closing.
Cash register beeping and opening with change in the distance
Cash box. Removing the cash drawer.
Clanking of industrial cash register being closed
Cash register drawer opening and closing with bells.
Clanking of fast food restaurant cash register drawer closing
Clicking and ringing of antique industrial cash register keys depressing and drawer opening