This is the Micro-Control Horn
From Du-Bro for the Park Flyers

Features

These are made of Plastic.
Three Holes for Adjustment

Includes

Two (2) Control Horns

Requires

Park Flyer or a Small Indoor Airplane

Specifications

Length: 1/2" (13mm)
Width: 1/4" (6mm)
Height: 1/16"(3mm)

Comments

For use on the Park Flyer or a Small Indoor Airplane!