Sony ICD-BX140 MP3 Digital Voice IC Recorder with Built-in 4GB + 2 AAA Batteries + HeroFiber Ultra Gentle Cleaning ClothCategory: Lathem 1000e Electronic Time Recorder This Sony ICDBX140 digital voice recorder features 4GB of internal flash memory, so you can easily store up to 4,175 hours of audio. A Noise Cut function and Low Cut filter promote crisp, clear results with minimal background noise.Features: * 4GB internal flash memory: Offers ample space for file storage. * Up to 4,175 hours of recording time: For reliable recording. * Automatic record level: adjusts the recording levels to promote optimal results. * Noise Cut function: Helps reduce ambient noise to ensure clear speech playback. * Low Cut filter: Minimizes wind noise in your recordings. * Digital Pitch Control function: Lets you play back recordings at a faster or slower rate without changing the pitch. * Easy search function: Allows you to rewind and fast-forward in short increments, so you can easily locate the section you want. * Add/overwrite function: Permits you to add to your recordings or overwrite parts of them. * Built-in mono microphone: With high and low sensitivity options promotes crystal-clear audio recording. * 1-1/8" speaker: Enables you to enjoy crisp sound playback. * LCD display: With front controls helps simplify operation. **Specifications:** Maximum number of folders (for a drive): 5 foldersMaximum number of files (for a folder) : 99 filesMaximum number of files (for a drive) : 495 files (When 5 folders are contained in a drive.) Frequency range: SHQ: 75 Hz - 15,000 Hz, HQ: 75 Hz - 15,000 Hz, SP: 75 Hz - 3,000 Hz, LP: 100 Hz - 3,000 HzMicrophone: Approx. 6 mm (1/4 in.) dia. monaural, omnidirecitonalSpeaker: Approx. 28 mm (1 1/8 in.) dia.Maximum recording time: SHQ:43 h. 25 m. HQ: 65 h. 10 m. SP: 1,043 h. LP: 4,175 h.Dimensions (WxHxD): 1.52 x 4.