Configuration: 2D imaging, Color doppler blood flow imaging, Spectral doppler imaging, ECG, Movie playback, Measurement calculation Safety Standards: GB 9706.1 and GB 9706.9 Physical Characteristics: Product Size: 346.1mm*111.5mm*285.8mm (Accuracy: ±5mm ) Net Weight: ≤5kg Operation Environment: Working Temperature: 0-45°C Humidity: 15%~80%, non-condensing Power Supply: 100-240V~, 50/60Hz±1Hz Battery Type: Rechargeable Lithium-ion battery Battery Capacity: 6600mAh Battery Recharging Time: Turn on: 8 hours for charging; Turn off: 4 hours for charging; Battery backup: 80 minutes for continuous working (Fully charged battery, screen brightness at 60%, sounds at 5) Display: 12.1” color capacitive touch screen Resolution: 1024*768