GE RRE5-10-D (and RRE6-10-D) ultrasound transducer is a microconvex endocavity probe compatible with GE Voluson E6, GE Voluson E8 Expert & GE Voluson E10 ultrasound machines. With a frequency range of 4 – 9 MHz, it performs 2D, 3D, and 4D volume images for urology and gynecology.