Abstract: A hand-attached controlled eccentric vibration device, configured to be attached to a back of a hand of a first person giving a massage to a second person receiving the massage. The hand-attached controlled eccentric vibration device includes a unit body made of rigid material in a form of a box and comprises a compartment to enclose at least one motor, a controller, and a battery therein. The bottom of the unit body has a curved shape to be fitted with the back of the hand of the first person. Further, the unit body is attached to the back of the hand of the first person by means of a skin attachment part.

Abstract: A hand-attached controlled pulsed vibration device, allowing for transmission of an enhanced massage, allowing full skin-to-skin contact between the hand of the person giving a massage and the skin of the person receiving the massage, by mounting on the back of the hand, with no glove, partial glove, or straps on the palm-side of the hand, and providing for vibration of controllable intensities and cycle times not normally achievable from a small vibrating motor, by controlling the electric power provided to one or more small vibrating motors, such that the operation of one motor or the interactions between two or more motors result in desirable intensities and cycle times of overall vibration.