Voice Recorders features: This noise reduction recording pen is made of premium material, which can withstand long-lasting use. Features the ABS and leather material, which has high durability, not easy to deform. Fine workmanshlp, ensures practicality. Features-Material:ABS, leatherStorage: 16GB (192h)Recording time: 20hSampling rate: 48kHzRecording bit rate: 192/256kbpsFormat: WAV Push the button up for normal recording, push the button to middle for voice-activated recording, push the button down for shutdown to save the recording Built-in time chip, with automatic time synchronization function, recording files are named by time (year, month, day, hour, minute, second) File encryption protection, integrated recording encryption technology, if you are not operating by yourself, you cannot listen to the recording file U disk direct plug-in, mass storage, no data cable, no need to transfer interface, USB plug directly into the computer, you can use it as a U disk, quickly import data It is manufactured with professional technology to ensure the product can work for a long time.