Voice Messages is an option on many chat systems. From imessages, Facebook Messenger and up to WhatsApp, the microphone button is in the text field.
Voice Messages is used to send voice messages (audio recordings) of the conversation partners, which they can listen to at any time.
In the near future, Facebook, a company that owns WhatsApp, plans to add a new option that will allow its user record voice messages without having to hold down the "microphone" button. All you have to do is press the voice record button and make a swipe from bottom to top to lock the option. "Slide to lock". While recording the voice message, you will be able to browse the conversation without stopping the recording.
At this time, this feature is only available to developers, but in the near future, all WhatsApp users will benefit from the new option.WhatsApp - New options in Voice Messages