【Double Microphone Heads】 Equipped with double microphone heads and automatic acoustic noise reduction, it captures 360° surround sound while filtering out background clutter—ensuring clear, detailed audio even in noisy meeting environments. 【AGC & ADPCM for HD Audio Quality】Features AGC (Automatic Gain Control) to balance volume levels of soft and loud sounds, paired with ADPCM high-definition recording technology. Delivers consistent, high-fidelity audio for every conversation. 【Large-Capacity Lithium Battery】Powered by a large-capacity lithium battery, it supports extended recording sessions without frequent recharging—ideal for all-day meetings, seminars, or interviews. 【Power-Off Auto-Save & A-B Repeat】Automatically saves recording files when the device shuts down unexpectedly, preventing data loss. The A-B Repeat function lets you loop key segments for easy review of important content. 【Practical Design for Meeting Scenarios】With double mics for enhanced pickup and user-friendly functions like noise reduction and auto-save, it’s a reliable tool tailored for capturing clear meeting minutes, discussions, or lectures. Specifications: Recording format: WAV (512Kbps), MP3 (128Kbps) Memory: 8GB Recording duration: WAV: 36 hours, MP3: 140 hours Frequency: 20-20KHZ Storage medium: Embedded flash Display: 1.44 inch TFT Microphone: Non-directional microphone Headphone output power: 10mW+10mW (320jm) Speaker power: 8Ω 2W Battery capacity: 360mAh Charger parameters: Voltage: 5V, Current output: 500mA~1A Dimension: 103mm*40mm*12mm Weight: 80g Operating temperature: -32℉ ~104℉ Support compuer system: Win98/2000/xp/7/8/10, for MAC OS