[One-Key Noise Reduction & One-Key ] Adopts the latest PCM ten-core triple digital intelligent One-key DSP noise reduction technology. Automatic gain control provides voice level adjustment capability.Control this digital voice recorder can provide you 1536kbps high-quality sound as if the speaker speaking standing by your side. [HD Stereo & HIFI MP3] Equipped with 2 exclusive omnidirectional stereo microphones, which can capture farther/lower but clearer sound for recording in a studio quality, making it great for podcasts, interviews and more. [Long Work Time]The audio recorder's recording format with MP3 work time can reach 156 hours,when the recorder recording format is WAV work time can reach 50 hours.This recording device enough needs for newsman,students, teachers, businessman, podcasts,lawyers,singer,anyone who loves recording. [Multi Features] One-Key Recording, One-Key DSP Noise Reduction Recording, One-Key , HIFI MP3,Voice Activated, Auto Recording, Timing Recording, Password Protection, Telephone Recording, Line-In Reording, Microphone Recording, Speaker, E-Book, Format and Bit Rate Set, REC&Save, Fast Forward and Rewind, A-B Repeat /Cyclic Playback , Monitor Mode, To Transfer Files, Calendar, Stopwatch, Alarm Clock Material: Metal colour: black Package Contents: 1 x Voice Recorder 1 x USB Cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.