The volume control knob and bass adjustment knob design the first panel, it is worth mentioning that the knob on the silica gel for special materials, operating with very Shunshou.

• 它的音量调节旋钮和低音调节旋钮设计在前面板，值得一提的是旋钮表面为特殊的硅胶材料，操作起来很顺手。