SONY ICD-PX470 STEREO IC VOICE RECORDER

ICD-PX470 comes with 4 GB of memory built-in, which gives you a max recording time of 59 h 35 m when recording in stereo at MP3 128 kbps. You can expand your memory capacity with a micro SD card for up to 32 GB of additional memory—equivalent to over 536 hours (Micro SD 32 GB, MP3 128 kbps) of recording time.