A. [One-Key Noise Reduction & One-Key] Adopts a PCM ten-core triple digital intelligent One-key DSP noise reduction technology. Automatic gain control offers voice level adjustment capability. Using this digital voice recorder, one can get 1536kbps sound as if the speaker is standing by one's side. B. [HD Stereo & HIFI MP3] Equipped with 2 omnidirectional stereo microphones, which can capture farther/lower clearer sound for recording in a studio-like quality, making it suitable for podcasts, interviews and more. C. [Long Work Time] The audio recorder's recording with MP3 work time can reach 156 hours, and when the recorder is in WAV recording mode, the work time can reach 50 hours. This recording device meets the needs of newsmen, students, teachers, businessmen, podcasters, lawyers, singers, and anyone who likes recording. D. [Multi Features] One-Key Recording, One-Key DSP Noise Reduction Recording, One-Key, HIFI MP3, Voice Activated Recording, Timing Recording, Password Protection, Telephone Recording, Line-In Recording, Microphone Recording, Speaker, E-Book, 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 is included, other products are not. Note: Light reflection and different displays may cause the color of the item to be a bit different from the real thing. The measurement allowed error is +/- 1 - 3cm.