HD Recording & Automatic Noise Reduction: The digital voice recorder adopts upgraded professional recording chip and the latest PCM intelligent noise reduction technology, bringing you 1536kbps high-quality PCM recording, just like the speaker next to you speaking clearly. With a unique dual-sensitivity omnidirectional microphone, it can capture clearer sound of everything around you.64GB Memory and Large Capacity Battery: This built-in 64GB recorder has a lot of memory and storage space, and can record up to 288 hours at 512kbps. The 880mAh rechargeable battery supports up to 95 hours of continuous recording and 85 hours of headphone playback. Automatically save when the battery is low, don't worry about the recorder shutting down halfway.Voice-activated Recorder: Our voice-activated recorder supports voice-controlled recording. When the voice control function is activated, the recorder will automatically record when the sound reaches the correct decibel level, and stop recording when there is no sound, saving your storage space and listening time, and is widely used in various places, such as: meetings, lectures, classroom learning, etc.[Portable Recorder]: The recorder with playback function provides headphone playback and playback functions, with all the functions you want, including A-B repeat, fast forward/rewind, 3.5mm headphone jack, MP3 player, variable speed playback, password and line input, ETC. It is a gift for a portable recording device for lectures, meetings, interviews, lectures, and classrooms.[Easy to Use] The recording device has a one-button recording/saving function to ensure that you don't miss anything important. Simple and clear operation button logic allows you to quickly master this multi-functional recorder.[Easy File Management]: Automatically save audio files with timestamps for easy searching.