Yaesu FVS-2 Voice Guide Unit for FTM-350, FTM-400, and DR-1X FVS-2 Voice Guide Unit for FTM-350, FTM-400, and DR-1X Hear the current frequency of the "Main" Band Record an incoming signal Automatic recording of the last 30 seconds of incoming signals ("Last" Mode) Eight recording memories of variable lengths ("Free" Mode; capable of storing up to five minutes of total recording time.)