The OLYMPUS Voice Trek V-843 features 8GB of storage and can record in MP3 format. - Brand: OLYMPUS - Model: Voice Trek V-843 - Storage: 8GB - Recording Format: MP3 - Included: Instruction manual, case A voice recorder with 8GB of storage and a simple mode. - Included: Soft case Batteries are not included. Currently discontinued. There may be some age-related deterioration. I used it only to confirm that it could record for operational check, but it was stored new in its box. I bought several of these new at retail price from a mass retailer about 10 years ago for studying, as I couldn't write down everything in lectures. I didn't use these. I am listing them now as they recently came to light after being stored during moves, etc. Thank you for looking.