500Hrs Sound-Activated Voice Recorder 16GB-128GB USB Flash, Long Standby, Noise Reduction, Portable

Before first use: fully charge the recorder. If you install an SD card, format the card first. Key features and specifications: - Extended operation: Up to 500Hours of continuous recording, 180days standby time, and 400hours of playback when using earphones. The device also supports recording while charging. - Sound-activated operation: Records only when sound is detected and pauses during silence to save space and power. Recorded files are timestamped — each file is named according to the recording time. - Simple operation: Start recording with one click and save with one click. Files are automatically saved when the unit powers off. - Superior audio quality: DSP smart noise reduction delivers clear recordings. Uses 1536KBPS recording bit mode for lossless, hi-fi sound. - Privacy and data protection: A power-on password can be set; without it the recorder and audio files cannot be accessed or copied. When battery is low or power is lost, the device saves the current recording before shutting down to prevent data loss.