Good afternoon.
Regarding RT-VF, if customer don't specify any sound or message when ordering,
the goods will be ship out "No Message". (No Pre-Recorded message)
We don't have any specific "Fire Alarm" sound at our factory side,
so if customer has, we recommend the customer to edit after purchasing.
Of course, PATLITE can support to record when it is produced,
but customer cannot upload the sound after purchasing.
Yes, customer can use Playlist editor to arrange the message after purchasing.