Signal radiation pens device

The utility model discloses a signal emitting pen, which comprises a pen holder, a main circuit board, a transparent movable pen head, a battery, a USB extension circuit board, a battery cover, and a signal emitting loop, wherein, the pen holder comprises a bottom shell and a face shell; a manual button is arranged on the upper part of the circuit board, a USB structure is arranged on the top of the pen holder, a silicon gel button is arranged between the main circuit board and the transparent movable pen head, and the transparent movable pen head is made of a transparent material. The USB structure arranged on the top of the pen holder can implement extended functions such as wired connection; if the pen head is not used in a touch manner, it can be controlled with the manual button; since the pen head is made of a transparent material, it can give luminous indication to facilitate learning; the signal emitting pen can emit signals continuously and thereby implement continuous handwriting input function in a