Some chats can get up to 600 voice notes a day and reach the 1,024-member limit in less than 24 hours
The WhatsApp groups have one simple rule: typing and speaking are forbidden, on pain of immediate removal.
Only voice notes with whistling are allowed, although the choice of content is up to the sender: it can be an imitation of a bird or a tune such as the theme from The Pink Panther or the introduction to Scorpions’ Wind of Change.
In recent days, Brazil has seen a sudden craze for whistling-only WhatsApp groups, bringing together people of different ages and professions, including members of Congress.
Some of the groups get up to 600 voice notes a day, with the most popular performances racking up hundreds of thousands of views on TikTok, such as interpretations of Evanescence’s Bring Me to Life or Gorillaz’s Feel Good Inc.
