Healson HS-UP20L handheld ultrasound scanner machine has small and lightweight design, full digital imaging technology, crystal clear image, abundant functions, powerful report management, electronic convex array scanning, B / B/B / B/M / M / 4B scanning mode, convex array probe, 60 mm radius, 2.0 MH ～ 4.5 MHz frequency scope, USB interface, Win XP / Vista / Win 7 / Win 8 / Win 10 operating system, 2.0 MHz / 2.5 MHz / 3.0 MHz / 3.5 MHz / 4.0 MHz 4.5 MHz frequency switch, electronic focus selection, 6 kinds application preset.