The Toshiba PVT-781VT Intra Cavity transducer has a frequency range of 3.0 MHz. – 11.0 MHz. and supports the following applications: Obstetrics, Gynaecology. The Toshiba PVT-781VT transducer is compatible with: Toshiba Aplio 300 (TUS-A300); Toshiba Aplio 400 (TUS-A400); Toshiba Aplio 500 (TUS-A500) ultrasound systems.