64GB Digital Recorder & Compact Size The keychain voice recorder come with 64GB memory, enough space for more than 24 hours continuous recording and store up to 750 hours recording files. It can also be a professional MP3 player and USB Drive. Our 64GB portable voice recorder have unique designed makes it look unlike a audio recorder at allHQ Recording & Triple Noise Reduction The audio recorder have high quality recording microphones with intelligent dynamic noise reduction, moreover, professional voice recorder with PCM digital & triple noise reduction technology for noise-free recordings and 360 panoramic recording, providing you with a really full clear and natural sound, you will enjoy clear recordings and playback easilyOne Key Operation & Time Stamp Toggle the switch to ON/Rec to start a recording after approx.5 seconds, toggle to "OFF/Save" to save recorders. Each of the recordings named with timestamp, making it quick and easy to locate your files in computer.Voice Activated Mode When turn on the voice activation function, the voice recorder device will automatically start recording, 7 levels of voice activation can be adjusted, this will reduce blank and whispering recording, and saving quantity of electricity and memory space. Tip: voice activation is turned off by default. If you need to use this function, please turn it on according to the manual