Paper sound collector of making by hand

The utility model discloses a paper sound collector of making by hand, the cover is collected to the handle body and sound wave including hollow structure, the handle body is L type stair structure, a handle body terminal surface both sides are provided with the draw -in groove, central the opening of cover is collected to the sound wave has a round hole, the round hole edge is provided with the post strip, draw -in groove looks block on post strip and the handle body, handle body internally mounted has the circuit board base of circuit board and the battery case that is provided with the battery, be provided with earphone connection port on the handle body, install the circuit board on the circuit board base, the circuit board is connected through the wire with earphone connection port, the round hole that the center of cover was collected to the sound wave is provided with the microphone, the microphone is connected with the circuit board, be provided with the on & off switch on the circuit board, open on the physically last top of handle has the switch keyway, earphone connection port external connection has the earphone. The utility model relates to a rationally, simple structure, convenient to use person's preparation especially makes things convenient for the student to study the principle of sound collector through preparation personally.