It is a loudspeaker.

This megaphone features a 500m range.

It is a lightweight battery operated megaphone. The megaphone has volume control, loud siren, and a wrist strap.

It takes 8 AA (UM-2) batteries which are not included.

This can be used during outdoor physical education classes, track meets, and other group events. This has a gray and blue color.

Specification

transistor circuit also can be offer

Packing List