Feature: 1. Noise Canceling Recorder: The voice recorder can record clear voice in any environment with AI technology and 90dB signal to noise ratio, ensuring excellent recording experience. 2. Aluminum Alloy Construction: The small voice recorder is built with premium CNC aluminum alloy for long lasting durability and reliability, resistant to wear and rust. 3. Versatile Functions: The sound recorder supports MP3, WMA, WAV playback with 192Kbit ADPCM recording, fast forward playback function, voice activated recording, and 15 hour continuous recording capacity. 4. User Friendly: the digital voice activated recorder automatically splits and loop recordings, names files by timestamp for easy organization, a switch for recording, with deletion function and LED indicators. 5. Long Battery Life: The voice recording device features a 90mAh polymer lithium battery for up to 30 days of standby time, making it excellent for extended use. Specification: Item Type: Voice Recorder Material: Aluminum alloy Frequency Range: 20Hz-20KHz Signal to Noise Ratio: 90dB Support System: Fit fo Win 98/ME/2K/XP/7/8/10/for Linux 6.2/for OS X 10 Battery: Built in Polymer Lithium Battery, 90mAh (Included). Package List: 1 x Recorder 1 x Headphone 1 x Charging Cable 1 x User Manual