Abstract: A noise measuring device is provided. The noise measuring device includes a soundproof box, a sound receiving device, a holding device, and a driving device. The sound receiving device is disposed in the soundproof box. The holding device is disposed in the soundproof box and configured to hold a testing object. The driving device is connected with the soundproof box and configure to drive the soundproof box to rotate.

Abstract: A twisting treadmill comprised of a treading unit, a reciprocally turning member that also supports the treading unit, a transmission unit connecting the treading unit and the turning member; the user having both feet stepping upon the treading unit to simulate treading motion while twisting in conjunction with a rotary rhythmic device that reciprocally rotates for the user to achieve fitness purpose by treading and twisting exercises at the same time.

Abstract: A cycle waist slimmer machine, wherein its main body is a long rod, at each end of the long rod is a pressure component to press down at the user's abdomen, another heavy thing is a rope-like object which is threaded through the corresponding ends of the pressure components which are at both ends of the long rod, when in use, the user holds the handles at both sides of the long rod, and then uses the pressure components to press down at the abdomen in order to allow the heavy thing at the other end of the long rod to turn, the user can, in conjunction with the centrifugal force created by the turning of the heavy thing as well as the size of the movement of turning to change the angle of the turning of the heavy thing, to achieve the results, fun-wise and health-wise.