4 GB Built in Memory to hold up to 1000 hours of recording (+ Micro SD Slot)
Retractable USB Connector
Battery Life of over 37 hours on just one AAA Battery!
Built in Stereo Microphones for exceptional clarity
Calendar Search Function allowing you to find your recordings simply by date

WS-833	WS-832	WS-831

Built-in Memory	8GB (Max Recording Time: 1980 hours)	4GB (Max Recording Time: 1000 hours)	2GB (Max Recording Time: 493 hours)
External Memory	microSD/ SDHC (up to 32GB)
Recording Format	PCM/MP3/WMA		MP3/WMA

Zoom Microphone
Manual Rec Level
Low-Cut Filter
Noise Cancel
Voice Playback
Voice Balancer
Voice Changer
Shadowing Mode
FM Tuner
Scene Select
Calendar Search
USB Battery Charge
Bundles	Ni-MH Rechargeable Battery USB Extention Cable Silicone Case Inner Ear Headphones	Ni-MH Rechargeable Battery Stereo Earphones	Alkaline Battery