A portable therapeutic device includes a portable body having a recessed central region (12) and a raised outer peripheral edge (13) surrounding the recessed central region, a plurality of massage balls (14) provided in the recessed central region, a thermal-conductive element (15) channeled inside the outer peripheral edge, and a power source (16), the plurality of massage balls including es a first transducer (33) having a solid top sphere (35), the device further comprising a powered actuator (37) operably coupled to the solid top sphere, causing the solid top sphere to oscillate along a multi-directional path (e.g., two or more of an x-direction, y-direction, and z-direction).