Hand-held wireless ultrasonic massager capable of rotating freely and system thereof

The utility model relates to the technical field of massagers, and discloses a handheld wireless ultrasonic massager capable of rotating freely and a system of the handheld wireless ultrasonic massager. The interior of the rear shell is rotationally connected with a rear rotating piece, and the exterior of the rear shell is provided with a front rotating piece fixedly connected with the rear rotating piece. A massage head for massaging is arranged on the front rotating piece; the massage head comprises a massage piece body, and a common mode inductor electrically connected with the circuit board and an ultrasonic piezoelectric ceramic piece installed on the common mode inductor and electrically connected with the common mode inductor are arranged in the massage piece body. The rear rotating piece and the rear shell can rotate, the front rotating piece is fixedly connected with the rear rotating piece, namely, when the rear rotating piece rotates, the front rotating piece can rotate along with the rear rotatin