【8GB Storage】Built-in 8GB memory offers ample space to store up to 96 hours of recordings, no frequent file transfers needed for long meetings or lectures. 【Smart Voice-Activated Recording】Triggers recording automatically when sound is detected and pauses in quiet environments, saving storage space and avoiding empty audio clips. 【Auto-Saving】Automatically saves files when powered off, avoids losing important content even with sudden shutdowns. 【Digital Noise Reduction】Equipped with digital noise reduction technology that filters out background interference. Ensures clearer, more audible voice recordings even in noisy environments. 【365 Days of Long Standby】Boasts an ultra-long standby time of up to 365 days, ensuring the device is always ready for use - no frequent recharging needed for occasional recording tasks. 【Time Stamp Function】Adds accurate time and date marks to each recording file, making it easy to sort, locate, and verify the timing of important audio content. 【Strong Magnetic Adsorption】Features a powerful magnet that securely attaches to metal surfaces for hands-free, discreet recording. Specifications: Memory: 8GB (Can save 96 hours) Battery: Environmentally friendly polymer lithium battery Recordin bit rate: 192KBPS Recorder format: WAV Play format: MP3/WMA/WAV Sampling Rate: 48KHz