1. One of the smallest recording devices - It measures only 1.20 x 0.3 inches, can store 16GB of data, and can record for up to 30 days in voice-activated mode. 2. Brand - new simplified video guide - In the Q&A section of the client, you will find a new video guide explaining the main functions. 3. Voice - activated recording - The device starts recording when it automatically detects sound and stops when the sound disappears. By using this feature, you will only record important content and save storage space. It will also be easier to find relevant recordings from audio files. With the automatic timestamp, the current date and time will be automatically recorded in the recording. 4. Long recording time - The battery allows you to automatically record audio for 30 days through voice - activated recording and continuously record for 18 days. It takes 2 hours to fully charge. The memory allows for 180 hours of recording. 5. High - definition noise reduction - It uses a professional DSP recording processor with high - definition noise reduction function to ensure clear and crisp sound.