Features: Direct link to your Mac/PC Variable control voice actuator Noise cancellation Calendar search function Scene select function Index marks Recording Format: WMA / MP3 Recording Media: Built-in 2GB flash memory Recording Time: WMA Stereo 128 kbps: 32hr 30min 64 kbps: 65hr 30min WMA Mono 32 kbps: 131hr 16 kbps: 258hr 8 kbps: 514hr MP3 192 kbps: 22hr 128 kbps: 33hr 30min Speaker: Built-in 18mm round dynamic speaker Battery: One AAA alkaline or One AAA Ni-MH battery Battery Life: Approximately 27 hours (LP) Specifications: Folders Messages: 5 / 200 per folder Overall Frequency Response WMA Stereo 128 kbps: 40 - 19,000Hz WMA Stereo 64 kbps: 40 - 16,000Hz WMA Mono 32 kbps: 40 - 16,000Hz WMA Mono 16 kbps: 40 - 8,000Hz WMA Mono 8 kbps: 40 - 3,000Hz MP3 192 kbps...