Product Features: One Button Recording: Single button recording feature, you can simply press REC to start recording. Clear Sound: Great MP3, WAV recording format with capacitive audio recording for clearer sound. You can enjoy crystal clear recordings and playback easily, recording automatic gain function (AGC). Support: Support telephone recording, repeat function, automatically saves files with low voltage and external voice speaker playback. Long Record Time: Built-in rechargeable lithium battery allows for recording for 20 Hours. Small Size: Portable and compact to carry wherever you go. Record Life: Perfect to record in your life, keep memory in audio type. Application: This can be widely used for your semester class, lecture, speech, interview, meetings, group talking, podcast recording. Ideal for students, professor, teacher, businessman, writer, blogger. Product Specification: Type: Digital Voice Recorder Material: ABS Color: Black Storage Capacity: 8GB Microphone: 360-Degree Omni-directional Capacitor MIC Recording Format: WAV /MP3 Recording Time: 20 Hours Play Time: 7 Hours Interface: USB 2.0 Package Includes: 1 x Digital Voice Recorder 1 x Earphone 1 x USB Power Cable 1 x Microphone 1 x Audio Cable 1 x Telephone Cable 1 x Telephone Recording Junction Box 1 x User Manual Simple Operation: easy figure out operation buttons, just switch on your voice recorder, Press “REC”, it records your important lecture, moments; Press “STOP” save your recordings safely; Press “PLAY”, listen what you just recorded, and then Press A-B, select your important section to repeat, help you study and review your teacher, professor’s main speech at class, lecture, semester so simple!Super user friendly. Voice Activated Recorder: Set the recorder to voice activated recording,catch the speaking words only.No more silent whisper or snippets in your recordings now. Effectively save the space of the recorder and your listening time. A-B Repeat Function: This is a great feature to help you study language,review lessons from selected starting point A to ending point B.You don’t have to go back or forward to listen the words any more. Easy Transfer Files: Voice recorder mac compatible. It supports recording files in MP3 or WAV format.You can transfer files easily by connecting to a computer via supplied Micro USB cable. MP3 Player Recorder: Not only a mini recorder,but a music player. Help you relax after your tired lectures, classes or meetings.