Built-in 64GB memory, can store up to a year's worth of 32kbps recording. With 1100mAh high-performance large battery, can record continuously for 60 hours after 4 hours of charging (default: 512kbps/WAV). Even record continuously for up to 95 hours at 32kbps. Enough memory and long-lasting battery to meet all your recording needsEven with the power off, simply slide up the recording button to start recording. Slide down the button to save recordings named in date and time. Never miss a moment you want to record. What if the power runs out during recording? Do not worry, the voice recorder will automatically save the recordingHave you been troubled by long periods of silence in your recordings? Just turn on "Voice Activation". When the audio recorder is in recording mode, it will start recording when it detects sound, and pause temporarily when there is no sound around, in order to capture the sound accurately, reduce recording gaps, save power and memory. Ideal for use in meetings, lectures, interviews and other occasionsBuilt-in speaker allows you to view the recorded content immediately on the spot. Recording information is displayed on a simple screen for easy viewing. "Can I use headphones to listen to the recording?" Of course! Use the included headphones to listen to recordings in a quiet environment. You can also adjust the volume, fast forward/rewind (only during playback) via buttons...Set "timer recording" to avoid forgetting to record. Turn on "Password protection" to prevent recording files from being viewed by others. In addition, during playback, use the "A-B repeat" to repeat and play the content between two points, helping you memorize words and more...More features, waiting for you to explore!