Sturdy metal construction: our mini voice recorder is carefully crafted from a single piece of high-quality zinc alloy, ensuring durability, impact resistance and abrasion resistance. Easy to use: this voice recorder is very simple to use and allows you to keep up with the pace of your study or work. turn it on to start recording immediately, ensuring that every moment is captured without missing any details. Advanced noise reduction: equipped with an octa-core dsp acoustic processor, this mini audio recorder excels at filtering out background noise, resulting in exceptionally clear recordings. Secure data storage: the voice recorder uses encryption technology to effectively protect your files and diary records. the keychain design makes it easy to carry. Strong standby time: 30 days of use on a single charge, 24 hours of continuous recording, longer recording time, low power consumption and long battery life, equipped with intelligent power-saving technology to reduce power consumption and intelligent fast charging technology, charging is faster