... , sophisticated segment adjustmentDouble activated socket, probe electronically shiftingFive display mode: B, 2B, B/M, M, 4B100 images permanent storage, USB flash disk ... digital images,easy to operate.There are four display modes: B, B+B, B+M, M, 4B; With 128 permanent imaged storage and 256 ... unit, and SMT technology. THR Medical Cheap!!! Medical Portable Ultrasound Scan MachineTHR-US6601