The design of the pendant and the amp; One-touch recording: light as a feather, no pressure to carry it: you can hang it around your neck and use it wherever you go. or stop/save the file that is named by recording date and time, for easy file management. Discard complicated steps and save important content anytime, anywhere. 4GB large capacity. Mini Voice Rec is equipped with 4GB large capacity. Meets your different recording needs. The built-in battery can continuously record for about 35 hours after fully charged. Supports recording while charging, and has the date Protection function, automatic saving when the battery is low. Automatic Noise Reduction & Amp; HD recording: which can capture farther/lower but clearer sound. Personalized and elegant, an ideal choice For gifts. Voice Activated Mode: Intelligent voice activated recording, it starts recording when you recognize the sound around; stops recording when silent. Save electricity and memory space Ideal for lectures, classes, inspiration, meetings, interviews and more. It is a wonderful gift for teachers, students, etc.