Poweam offer advanced laptop color doppler, portable color doppler and mobile color dopplers. 2D They are ISO,CE approval,some of them has FDA.Our 2D color doppler or 4D color doppler applies for Abdominal Gynecology & Urology, Fetal/OB, Small Organ Breast,Testes,Thyroid, Pediatric, Peripheral Vascular, Musculo-skeletal Conventional & Superficial, Cardiac adult & pediatric, Transvaginal.With Electronic convex, Electronic linear, Electronic micro convex, Electronic phased array and 4D Volume convex scanning method and B, B/M , M, 2B,4B, CFM, 2D Steer, PD, DPD, PW, B/BC,Triplex, Quadplex, CW ,Free Steering M, TDI,ECG, stress echo, 4D etc mode.