Sony Digital Voice Recorder - 1GB Flash Memory. Maximum recording time: 19 h, Recording modes: MP3, SP, ST, STHQ, STLP, Playback time: 28.5 h. Internal memory: 1024 MB. Interface: USB. Weight: 70 g. Dimensions (WxDxH): 30.8 x 14.9 x 119.3 mm, Battery type: AAA