... IC circuitry, no cross over, no interference. ♦ Continuous, intermittent, and dense-disperse (modulated) wave forms ♦ Adjustable frequency : 1 ~ 100 Hz ♦ Durable ... Source : DC 9V (CR14, UM2), or AC adaptor♦ Intermittent wave : continuous wave♦ Frequency adjustable in 1~100 Hz, break-wave time ... is 5 seconds, continuous ♦ machine Dimensions :260 x 190 x 110 (mm) ♦ One ...