Features: brand new and high quality File Encryption Technology: The recording file is automatically encrypted, and the recording cannot be opened without a password. Ensure the safety of recording materials. High-definition Noise Reduction: Built-in professional-grade powerful noise reduction chip, bring you higher fidelity, clearer recording sound quality and playback, Dps chip, filter noise reduction, restore human voice. Intelligent Voice Control Recording: when there is sound, it will record without sound and stop, and when there is sound, it will start recording. Stop recording without sound, improve efficiency and save memory. Light and Thin Body, Compact and More Portable: It can be heard and recorded in a variety of special environments. It is not only a voice recorder, but also a USB flash drive and MP3. Strong Battery Life and Long-term Recording: 750mAh Polymer lithium-ion battery, continuous recording for about 150 hours, strong power and long-term companionship. Specifications: Material: ABS Color: Black Memory: 8G, 16G, 32G Product Dimension: approx. 8.6x5.4cm/3.38x2.12inches Net Weight: 120g/0.26lbs Note: Please allow 1-2cm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1PC Card-style Ultra-thin Recording Pen