.Up and down freely retractable, 31cm~47.5cm height can be raised and lowered at a comfortable height, for drama/online class/live broadcast assistant
.Clamping design, heavier base, stable
.Up and down adjustment, 360°rotating adjustment, comfortable viewing angle can be adjusted at will; minimum 11.5cm, maximum expansion 19.5cm, tablet can be clamped, or with a shell