What is voice record button? The button that you press on the device which can record your voice and play it back. What is the use of voice recording button?Record customer's voice or sound file by microphone,then play it back from speaker. Record button can be used as children toys or educational toys.How to record Talking Buttons? You can record any phrase, message, or sound effect you want! The maximum recording time is 30 seconds. SIMPLE TO USE: Turn the unit upside down, move the slide switch to REC. Hold down the TOP BUTTON wait for BEEP and record !