Both etiquette experts agree, you should only send a voice note when it’s absolutely necessary, when it’s short, and to those who you have very strong, casual and personal relationships with.

Voice note users, she said, “don’t have to respond to the friction of someone else’s affect” if a disagreement comes up, for example, or an unexpected question.

Though the average voice note length is about three minutes, Sky Mobile found 44% of us listen to the recordings on double speed, halving them to well under the two-minute upper limit.