The Witch Girl Pro is using a hybrid technology of Balanced Armature drivers and Dynamic drivers. Two dynamic drivers for low frequencies and two BA drivers each for mid and high frequencies. At first glance, combining difference drivers with different characteristics may seem strange but however this enables the earphones to give a good balance between the lower and the higher frequencies of the music. This gives a very powerful bass response without any distortion yet creating very rich overtones for the vocal range. With the combination of these drivers, it creates a different feeling although from a conventional single dynamic driver earphones or an all Balanced Armature drivers earphones.
The Witch Girl Pro is also extremely comfortable to wear. Despite using multiple drivers which increases the size of the housing, the shell is all handmade and has no breaks between the shell and the faceplate to encompass all of the drivers properly. With Witch Girl Pro, listeners can experience the best sound while wearing the earphones for a long period of time.