Recording I Professional Denoise HD Color Screen Mini Digital Voice Recorder Pen. Professional Noise Reduction: Built-in DSP chip with digital noise reduction technology for clear audio. Dual Function Design: Combines recording and writing capabilities in an exquisite pen shape. Durable Metal Construction: Made of all-metal stainless steel with CNC machining and paint process. VOR Voice Activation: Features independent VOR button for automatic recording upon voice detection. Long Battery Life: Provides 7-10 hours of continuous recording and 6 hours of playback. Large Storage Capacity: Optional 32GB or 64GB memory with support for MP3, WAV, and WMA formats. Time Stamp Function: Allows setting recording time for organized lecture and meeting notes. OEM & ODM Support: Manufacturer supports custom design and software upgrades for clients.