64G SD Card Voice Recorder - 2022 improved 64G smart voice recorder with the capacity to store up to 768 hours of audio. The recording time can reach up to 22 hours on a full charge. It can also be used as a professional MP3 player. Portable pen design - Built as a discreet and practical pen that fits in a bag or drawer. The pen design allows you to take notes while recording, ensuring you capture important information without missing details. Professional recording device - Intelligent noise reduction and stereo microphone help the portable recorder perform well in diverse environments. Achieve noise-free recordings and 360-degree panoramic sound for a truly clear and natural voice. Ideal for lectures, meetings, and interviews. Smart voice recognition - Built-in automatic voice recognition records only when audio is detected. This simplifies operation, improves efficiency, saves power and storage space, and extends the life of the device.