[One-touch Recording:] Instantly activate with one-touch and never miss a recording opportunity. You can silently and quickly start recording even in your pocket, thanks to the REC slide switch. Start recording without drawing attention. [Super-long Recording Time:] Offers an impressive 500 hours of rechargeable battery life. Capture notes, lectures, conferences, meetings, dictations and more, with ample storage space for additional files. [Voice Activated Recording (VOR):] When VOR is enabled, the device records only when sound is detected, conserving power by entering standby mode when no sound is present. Automatically splits recordings and supports loop recording. [Time and Date Stamp:] Connect the recorder to a computer and open the "SetUDiskTime.exe" folder on the device's disk directory. Double-click the "SetUDiskTime.exe" program to synchronize the recorder's time with the computer's system time. [Mp3 Player:] Supports MP3, WAV and other music formats, allowing you to enjoy audio playback anytime, anywhere. [Magnetic Function:] Built-in magnet for convenient attachment, enhanced concealment, and noise reduction. [Recording Format:] WAV [Recording Bit Rate:] 192kbps (WAV) [Sampling Rate:] 48kHz [Frequency Response:] 20Hz - 20kHz [Microphone:] Non-directional condenser microphone [Storage Capacity:] 4GB [Color:] As shown in picture [Material:] Plastic [Dimensions:] 71mm x 22mm x 18mm [Package Contents:] 1 x Digital Voice Recorder 1 x Earphone 1 x USB data cable Note: Light reflection and differences in display screens may cause slight variations between the color of the item in the photo and the actual product. Measurement may vary by +/- 1-3cm.