... : Convex/Linear/Micro-convexDisplay modes : B,B+B,B+M,M,4B Scanning depth : 240mmGray scales : 256Cine-loop :819 frames (Max)Image permanent storage : 32 ... Micro-Convex6.5MHz Transvaginal Convex7.5MHz Endorectal LinearVideo PrinterBiopsy bracket B Mode Portable B Ultrasound MANUFACTURER in China