Slide Control Switch Operation High Quality Sound-"New LPEC Codec"- 44.1kHz / 16kHz / 8kHz Sampling Rate St (Stereo With Optional External Microphone) / SP / LP Recording Modes) Uses Removable Memory Stick Media-Includes One 16MB Memory Sticks® Up To 347 Minutes Recording Time With Each Supplied 16MB Memory Stick (42 Min. St, 130 Min. SP, 347 Min. LP) Frequency Response: 60Hz - 11000 Hz (Stereo Mode) --it makes transcribing easier and voice to print work extremely well Compatible With Dragon Naturally Speaking Preferred Voice To Print Software USB Connectivity For High Speed Copying of Files to The PC Selective Automatic Folder Copy Function to the PC Digital Overwrite / Cut Function Advanced Digital Voice Operated Recording High Value Design With Seamless Aluminum Body Digital Voice-Up Feature In Voice Editor Software User Name & Up To 340 Personally Named Folders (Set Using The PC) Digital Pitch Control In Playback Add / Overwrite Functions Voice E-Mail Function Incremental Rewind (Easy Search) Recording Monitor Function Alarm Playback Function Built In Microphone & Playback Speaker Power On/Off Switch Hi / Lo Mic Sensitivity Priority Setting Earphone And External Microphone Jacks Includes Carrying Case Dimensions (H x W x D): 4 13/16" x 1 5/8" x 3/4" Weight: less than 3.5 ounces, including batteries and a Memory Stick