Self-Recordable 300 Second Sound Module with Push Button Playback. To record, momentarily press the red RECORD button which activates the built-in microphone. When done, momentarily press the black PLAYBACK button. Press the PLAYBACK button to hear your message. It is that easy! The size is 2 1/4" x 3 1/8" x 1/2". (57x80x38mm)
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