Introducing the Diasonic DDR-5K(512) Pro, 141 hour, 512Mb digital audio recorder - The world's most advanced digital audio recorder, telephone recorder, MP3 Player, FM Radio recorder/player, pocket hard drive. All the features you have asked for packed into one easy to operate high quality recorder. This unit incorporates all the state-of-the-art Diasonic features such as 'pause/resume' control, automatic file and folder advance, 32Kbps digital sampling rate, and unsurpassed Diasonic quality to make it the recorder of choice for the professional user. The all new 'one-touch toggle' makes all playback functions, including volume, fast forward and reverse a snap. Diasonic DDR-5K(512)Pro Exclusive Features and Advantages: All new ergonomic design for ease of use one hand operation. Automatic file AND Automatic folder advance with time/date stamp on each recording. Advantage: When used as an automatic telephone recorder or voice activated audio recorder, time/date stamp and length of recording is displayed on uploaded files for each call or audio recording, allowing for quick review of desired recordings. 128 files in each of 8 folders equal an astounding 1024 automatic recordings. Advantage: Unattended capacity of up to 141 hours (512mb model) of automatic recording and 1024 individual recordings allows for weeks of service without accessing or uploading recorder files . Scrolling dot matrix display with emerald blue backlight. Advantage: Easy to read, menu driven control settings assure ease-of-use and correct setting for your application. Voice-activation (VOR) with microphone sensitivity adjustment. Advantage: Allows for voice activation and audio pick up sensitivity to be adjusted for optimum results in many different recording environments. Super High Quality (32Kbps) Recording Mode. Advantage: 32Kbps sampling rate setting offers near CD quality voice or audio recording quality. Most digital recorders are limited to only 16Kbps or 1/2 the recording quality of the DDR-5K. This mode is useful if you desire to use many popular 'speech to text' voice recognition software packages available on the market today or require exceptional recording quality. Cell Phone Recording Adaptor: Allows for 'hands free' operation and recording of your important cell phone conversations. Included adaptor works on most cell phones. (Nokia phones require optional adaptor) Pause and resume control. Advantage: Pauses recording for up to 5 minutes in the same file without creating a new file number. AC adaptor included: Advantage: Unlimited continuous operation. Timer recordings. Advantage: Up to 3 daily, weekly and specific date automatic record times can be pre-programmed. Distortion free playback speed option. Advantage: Recordings can be played back in slow/standard/fast modes without distorting audio, allowing for fast review of audio without the 'donald duck' sound of most digital recorders. Built-in stereo FM radio. Super slim light weight design. Built-in 5 band equalizer with bass and treble control for customized sound. Full Accessory Package included with each Recorder