Facebook Unsend Button launch Soon.
WhatsApp launch Delete for Everyone button, Some months ago. In this option, you can delete your message after sending in 1 hour 13 mint. But now this feature come to Facebook Messenger with name Facebook Unsend Button.
Facebook launch Unsend button in their Messenger Soon, with the help of this button you could delete your send messages in Messenger in a Specific time. Now, this feature comes to Beta version but soon it will be available for everyone.