Sound Activated Recording :The recorder automatically starts recording when it detects sound, making it easy to capture important moments without having to press any buttons. HD Noise Reduce Recording :The recorder uses advanced noise reduction technology to ensure that your recordings are clear and free from background noise. Ultra-Thin Design :The recorder is incredibly thin, making it easy to carry around and use on-the-go. Professional Quality Recording :The recorder uses high-quality recording technology to ensure that your recordings are professional-grade and suitable for use in any setting.