Voice Activated Recorder: Turn on the voice activated function, the recorder will auto record once the sound reaches correct voice decibel level, and stop recordin when there is no sound. It reatly saves the memory space and listenin time, and widely used in classroom and lanuae learnin136B Lare Capacity in Memory: 2024 upraded voice recorder built-in 8B memory and a 128B TF card (included, inserted in recorder) to expand the memory, 136B diital audio recorder can store 9900 hours of recordin files(32kbps). 500mAh rechareable battery supports up to 33 hours continuous recordin (512kbps) and 24 hours of playback with earphones. It is a professional recordin device by fulfillin all your recordin needsHD Recordin & Automatic Noise Reduction: Adopts the latest PCM ten-core triple diital intellient noise reduction technoloy, this diital voice recorder can provide you 1536kbps hih-quality sound as if the speaker speakin standin by your side. Equipped with exclusive omnidirectional stereo microphone, which can capture farther/lower but clearer soundSimple To Use and Multi-function: Easy to fiure out. Just three-button to record, save and playback, make you never miss any important content with it! Optimized Menu Choice for more intuitive naviator, tape recorder has all the functions you want, A-B repeat, fast forward, rewind, 3.5mm headphone plu, mp3 player, variable speed playback, password and line-in etc. Its a perfect recorder for lectures, meetins, interviews, speeches, classesEasy Files Manament: L87 Voice recorder can save the recordin files with time stamp (File named with Year, Month, Day, Hour, Seconds), easy to reconize when you recorded it. You can use the supplied type-c cable to connect a computer or Andriod smartphone to chare it quickly. Packae: 1 x 8B Voice Recorder, 128B TF card, 1 x Type-c charin cable,1x User Manual