High Qulity & Long Time 8GB Large Memory - High quality recording, 1536KBPS, using DSP noise reduction technology to filter out ambient noise and restore the real scene. It can record continuously for more than 30 hours and playback for 7 hours. Worry-Free One-Click Recording - Press the REC button to record voice, one-click recording and one-click save, 8GB internal memory, can store 199 audio files. Built-in high-quality speakers, just listen to it on the go. Multi-Functions and Wide Usage - MP3 function, USB storage flash disk, A-B repeat function, Delete function. Supports audio format: MP3, WMA, MP1, MP2 format, WAV format recording. A great recording device for recording lectures, meetings, business negotiations, medical advice, evidence collection, interviews, discreet and covert spy recording, etc. Stylish and durable - Distinctive and strong exterior design, built-in Lithium battery, rechargeable and environmentally friendly, which makes this voice recorder stylish, durable and sweatproof, even as a perfect gift for students, writers, professionals and any one who needs this! Power supply type: battery powered Compatible devices: personal computer.