1. Set your switch in the up position (white showing).

2. Make sure the surface of your whistle is clean. Peel off the protective cover on the tape to expose the adhesive.

3. Insert your switch into the whistle.

4. When your switch is in place, press firmly on switch to create a good seal between switch and whistle.

5. To insure the best installation results and a maximum seal between the whistle and your switch installation temperature should be from 70°F to 100°F.

This product is not connected in any way with nor endorsed by Fotron International, Inc. Hamilton, Ontario, Canada, the manufacturer of the Fox 40 whistles. This product may reduce the performance of the Fox 40 whistles.