1-button recording and Easy to use: One button for starting and saving recordings. With digital noise reduction technology and dual sensitive microphones, our voice recorder can record sound in a 360 audio pickup mode, and intelligently reduce noise to capture clearer sound in complex audio environments. You can easily record lectures, meetings, interviews, speeches, business events, and classroom content.1100h Long battery life and large storage : Our digital voice recorders have built-in storage capacity,max support for 128GB extended TF card (not included).It supports up to 20 hours of continuous recording and 34 hours of headphone playback time (battery life: in power-saving mode, WAV-512Kbps format, 32Ohm headphone output, medium volume setting). When connected to external power for charging, it allows around 1100 hours of continuous recording (Storage Life: MP3-32Kbps format).Voice activated recording: By enabling the voice-activated function, our digital voice recorder can automatically start recording when it detects suitable sound decibel levels, and automatically stop recording when there is no sound, effectively saving storage space and your playback time. The device also supports automatic saving in low battery conditions, ensuring that your recording files are not lost.1.77-inch&Easy manage&Multi-function: 1.77-inch HD color display screen, our handheld recorder allows you to easily manage recording files, with each file having a timestamp. With A-B repeat playback, timed recording, timed shutdown, MP3 player, password setting, and timed playback and other functions. Simply plug in the USB cable to your computer to upload or download files while charging.Portable recorder suitable for students, teachers, seniors, business professionals, etc.