An ultrasound system comprising: an ultrasound probe; a mobile information terminal; and an external apparatus, wherein the ultrasound probe includes a transducer array, a transmission and reception circuit that transmits an ultrasonic wave from the transducer array and generates a sound ray signal based on a reception signal acquired by the transducer array, an ultrasound image generation unit that generates an ultrasound image based on the sound ray signal generated by the transmission and reception circuit, and a probe-side wireless communication unit that wirelessly transmits the ultrasound image, the mobile information terminal includes a camera unit that acquires a view image obtained by imaging a scanning point of the ultrasound probe in a subject, and a terminal-side wireless communication unit that wirelessly transmits the view image acquired by the camera unit, and the external apparatus includes an external wireless communication unit that is wirelessly connected to at least the terminal-side wireless communication unit, a first image synchronization unit that synchronizes the ultrasound image wirelessly transmitted from the ultrasound probe and the view image wirelessly transmitted from the mobile information terminal captured at the same timing with each other by referring to a time stamp of the ultrasound image representing a time at which the ultrasound image is captured and a time stamp of the view image representing a time at which the view image is captured, an external monitor, and a display controller that displays the ultrasound image and the view image synchronized with each other by the first image synchronization unit on the external monitor. an ultrasound probe; a mobile information terminal; and an external apparatus, wherein the ultrasound probe includes a transducer array, a transmission and reception circuit that transmits an ultrasonic wave from the transducer array and generates a sound ray signal based on a reception signal acquired by the transducer array, an ultrasound image generation unit that generates an ultrasound image based on the sound ray signal generated by the transmission and reception circuit, and a probe-side wireless communication unit that wirelessly transmits the ultrasound image, the mobile information terminal includes a camera unit that acquires a view image obtained by imaging a scanning point of the ultrasound probe in a subject, and a terminal-side wireless communication unit that wirelessly transmits the view image acquired by the camera unit, and the external apparatus includes an external wireless communication unit that is wirelessly connected to at least the terminal-side wireless communication unit, a first image synchronization unit that synchronizes the ultrasound image wirelessly transmitted from the ultrasound probe and the view image wirelessly transmitted from the mobile information terminal captured at the same timing with each other by referring to a time stamp of the ultrasound image representing a time at which the ultrasound image is captured and a time stamp of the view image representing a time at which the view image is captured, an external monitor, and a display controller that displays the ultrasound image and the view image synchronized with each other by the first image synchronization unit on the external monitor.