Smart Voice Activated and Clear PCM Recording Uses a smart voice sensor and upgraded noise reduction to deliver clear audio up to 15 feet away (over 50dbs). One button starts the voiceactivated recording mode; the recorder auto records when sound is detected and stops and saves when the sound level falls, reducing blank or whispered snippets. Large capacity storage and long battery life 64GB capacity stores up to 765 hours of recordings. Builtin 400 mAh rechargeable battery; fully charged in about 2 hours. Records continuously for up to 40 hours and plays back for about 15 hours. Supports recording while charging. Easy to use Coinsized design, weighs about 0.5 oz and is only 0.2 inches thick, making it easy to carry in a wallet, pocket, briefcase, or on a key chain. No complicated buttons: just one button to record, save, and playback. Each recording file is timestamped to simplify locating and managing files on a computer or mobile device. Strong magnetic attachment and versatile features Built with strong magnetic absorption to attach to metal surfaces such as a desk or car seat, helping reduce friction noise during recording. Delivers clearer audio for a variety of recording needs. In addition to recording and playback, it functions as an MP3 player and USB storage device. Use scenarios Meetings and interviews: discreet, voiceactivated recording with long battery life and clear audio. Lectures and classes: extensive storage and long recording sessions, with easy file management via timestamps. Onthego notes and field work: attach to metal surfaces for steady pickup, record while charging, and use as a portable MP3 player or USB drive.