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L*S* Professional Digital Voice Sound Recorder MP3 Music Player One-Button Recording Voice-Activated Support Recording Monitor Telephone Recording with Loudspeaker 8GB Capacity for Meeting Lecture Interview Features: One-button recording, with voice-activated mode, support voice recording, recording monitoring and landline phone recording. It is not only a voice recorder, but a MP3 music player with 7 EQ modes. You can adjust according to your preferences. Support A-B repeat, play a certain section of the recording repeatedly, which can meet the need of places requiring high quality recording, like investigation, meeting record, interview, etc. Built-in rechargeable lithium battery, fully charged for recording more than 15 hours. Smart battery detection automatically saves the recording file before the battery is exhausted. Support for USB 2.0 computer connections for easy uploading and downloading of voice or music. Practical and portable, wide application in meeting, speech, lecture, interview, class, etc. Specifications: Color: Grey Material: Zinc Alloy Display: SeL*S*ent Code Screen Frequency: 20Hz-20KHz Recording Format: WAV Play Format: MP3/WMA/FLAC/APE/OGG Battery: Built-in 360mAh Lithium Battery USB Port: USB 2.0 Capacity: 8GB Working Time: 15 hours Recording File Time: 44hrs (384KBPS) Working Temperature: 0-40 ℃(32-104℉) Recorder Size: 8.5 * 4.2 * 1.2cm/ 3.3 * 1.7 * 0.5in Recorder Weight: 83g/ 2.9oz Package Size: 13.5 * 7.5 * 4.7cm/ 5.3 * 3.0 * 1.9in Package Weight: 187g/ 6.6oz Package List: 1 * Recorder 1 * Microphone 1 * Earphone 1 * Junction Box 1 * Telephone Line 1 * Audio Line 1 * USB Cable 1 * Use's Manual