... 10MHz 2.Display mode:B,2B,B/M,M,4B 3.Gray Scales:256 4.12"High-resolution SVGA Mobile Ultrasound ScannerModel:CMS600C ... four kinds of scan center frequency alsoMain Performance Display mode: B, 2B, BM, M, 4BImage gray scale: 256 ScaleMonitor size: ... Main products Pulse Oximeter, Fetal Doppler, Patient Monitor, Stethoscope, B-Ultrasound,ECG/ECG Holter, EEG/EEG Holter,EMG, etc Mobile ultrasound scanner