A voice note may be easy for the sender to record and difficult for the recipient to use. They might be in a quiet office, a noisy place or a situation where they cannot listen privately.
Check the format when you are unsure: ‘Would a voice note work, or is text easier?’ The answer can vary by situation, even with someone who usually enjoys audio messages.
If you send a note, state the purpose early. A person should not have to listen through several minutes before discovering that you are asking for a date confirmation.
Put important actionable details in text as well when it helps: the address, the agreed time or the exact question. A short written summary makes those details easier to find later.
Avoid assuming that listening is possible simply because the message was delivered. If timing matters, discuss an appropriate channel rather than repeatedly sending longer audio.
Voice can add expression, but it also changes the practical demands of the conversation. Before recording, ask whether audio serves the recipient as well as you. A considerate voice note gives the other person an easy way to understand the purpose and act on the information without replaying the entire message.