Item Type: Mini Voice Recorder Material: Zinc Alloy Frequency Range: 20Hz-20KHz SNR: 90dB Supported Systems: for Windows 98, for Windows ME, for Windows 2K, for Windows XP, for Windows 7, for Windows 8, for Windows 10, for Linux 6.2, for OS X 10 Built-in Polymer Lithium Battery: 160mAh 1、STYLISH AND BEAUTIFUL: Mini zinc alloy recording device, sandblasted black finish, 5D glass for concealment. Sleek and beautiful, with lanyard hole. 2、MULTIFUNCTIONAL: Mini voice-activated recorder supports MP3, WMA, and WAV playback, fast forward and rewind. 3、EASY TO USE: Digital voice recorder with one-touch recording function; in-line deletion function; playback LED indication. 4、RECORDING FUNCTION: Digital voice recorder with ADPCM recording, 192Kbit optional voice control recording, 50DB automatic split recording, loop override recording. 5、LONG STANDBY TIME: Voice recorder with 35 hours of continuous recording and 30 days of standby. Time-stamped, time-named recording files. Includes: 1 x Mini Voice Recorder, 1 x Headphones, 1 x Charging Cable, 1 x Manual