TG-98TA is a wide band tour guide system with 36MHz bandwidth. Preset 6 groups each of up to 23 channels. Maximum operation distance 200m with antenna version and at 20mW RF output. Transmission power select-able. Built-in limit switch of audio output. Line in at TA and line out at RA, ready for video camera. Built-in speaker at RA and microphone at TA. Adjustable power auto off at RA to save battery power. Low battery alarm. With RF strength gauge, panel lock and mute function (TA).