● Screen update: OLED large screen, full screen display, clearer vision. ● Angle upgrade: imaging angle 90°, wider scanning angle. ● Probe upgraded: handheld more convenient. ● New mode: the new gestational sac mode is very suitable for scanning the gestational sac of sows. ● Backfat mode: assisted automatic measurement. ● Upgraded appearance: hard, small size, light weight, handheld. ● Built-in high capacity lithium ion rechargeable battery, can work continuously for 4.5 hours.