... Image modc: B, B/B, 4B, B+M, M 3. 64dB 96dB adjustable 4.2 times zoom FUNCTIONImage modc: B, B/B, 4B, B+M, MImage ... frequency selectedMeasurement: distansce, circumference/acreage, HR, pregnancy week (BPD, GS, CRL, FL, AC) and calculating fetus weight, etcAnnotation: Chinese ... real time clock display.Puncture icad: Image B: Puncture guide line under B modeGain adjustmcnt: 8-segments TGC adjustment, GAIN ...