Getting to know the Chison 8300 ultrasound. See the keyboard up close and what each key does. This is lowest price black and white portable ultrasound machine. For human model visit: http://www.keebomed.com/collections/portable-ultrasounds/products/chison-8300-portable-digital-ultrasound For veterinary model visit: http://www.keebovet.com/collections/vet-ultrasounds/products/chison-8300vet-portable-ultrasound-scanner