PURPOSE: An electricity kayakum enhancing the sound volume of a sub-tense is provided to smoothly transfer the clear original sound of kayakum in the use of pick-up to the spectator of the distal position. CONSTITUTION: A main body(110) includes a nut and a holder. The nut is projected in one side of the upper side of the main body. The bridge is projected in the other side of the upper side. A holder(120) is arranged in the nut. The both ends of a subtense(130) is fixed with the nut and the bridge. A pickup(140) is arranged in the lower of the subtense. The pickup changes the vibration of subtense into the electric signal.
