It is worth mentioning that, as it is in the testing phase, it is necessary to sign up for the messenger Beta program to take advantage of the feature in the Google system. In addition, I need to update the application to version 2.18.102. Next, learn how to use the audio lock on WhatsApp.
Step 1. Open WhatsApp and join the conversation with the friend or group you want to send the voice message to. Then, touch the microphone cone and hold for a few seconds. When the lock icon appears, drag your finger to it.
Step 2. Take your finger off the screen and record as much as you want. When finished, just touch the paper plane button to send the audio. You can discard the message by tapping "Cancel".