Requirements: - Installed voice synthesis I recommend Google Voice Synthesis http://bit.ly/1idTzFr With this app you can finally hear your messages from WhatsApp. It is easy to configure and very intuitive. Extremely useful when you are driving or doing sports, or just when you do not feel like taking your mobile phone. Here are some functionality: - ability to include the text of the message. - mute function during an active telephone call. - mute function if the mobile phone is in sile