Key Features Transferring files to or from your computer is fast and convenient. Just plug the ICD-PX470 straight into a free USB port for an immediate connection no USB cable needed. The ICD-PX470 comes with 4GB of memory built-in, which gives you a max recording time of 59h35m when recording in stereo at MP3 128kbps. You can expand your memory capacity with a micro SD card for up to 32GB of additional memory equivalent to over 536 hours (Micro SD 32GB MP3 128kbps) of recording time. Recordings are marked by date, so you can easily find which ones were made on a specific day. Bring up the calendar to browse through days and find the recording youre looking for. Getting conversations down on paper is easy with the transcription playback mode. Easily fast-forward and rewind through the track, or create cue points that help you find your place quickly. Digital Pitch Control even lets you slow down the playback speed so you can listen more closely to whats being said. Filter out low-frequency background noises when you record by engaging the low cut filter. Sources of unwanted noise like projectors, traffic or wind can be filtered out of your recording, so its easy to make out voices when you listen back. Choose from two popular file formats when you record. Linear PCM files are larger but capture more detail ideal for recording music. MP3 files are compressed but require less memory, making them better for recording long lectures or meetings. The ICD-PX470 will also play back MP3 and PCM files, so you can listen to your favourite songs in music player mode.