1Long Range: Mini digital voice recorder can be recorded at a distance, can catch the sound of 60m/196.9ft away, heard that recorded. 2Noise Reduction: Voice recorder using DSP + acoustic technology, automatic separation and substantial reduction of noise sound waves in different environments, so as to record and input the real sound quality. 3Auto Save: The mini digital voice recorder automatically saves files when the host system detects that the power is low, and then shuts down. 4Timestamp: The voice activated recorder's system automatically updates the time so that each file has an accurate recording creation time, making it easy to manage and query the recording files. 5Wide Scenes: Mini voice activated recorder is exquisitely crafted, thin and light in design, and easy to grasp. Suitable for dry class training, meeting records, academic exchange records, singing recordings, etc.