- Brand: OLYMPUS - Model: DS-800 - Storage: 4GB - Features: Voice Trek This is the Olympus Voice-Trek DS-800 digital voice recorder. Released in 2011, this model features a 3-microphone system for high-quality sound recording. Main features: Recording: Supports linear PCM (WAV), MP3, and WMA formats. Storage: Equipped with 4GB of internal memory and a microSD card slot. The product has been tested and is in good working order. Recording and playback have been confirmed. The product functions normally. As it is a used item, there may be some minor scratches and stains from use. Thank you for viewing our product.