Air raid siren - cross-over run 

Man, I love those GP3s!

Loving the colour scheme

Big awesome sirens moment.

Always a pleasure, thankyou for sharing. C

I really want one so badly.

You: ima test some sirens. Neighbor: WHAT is it world war 3!? Where did you test these sirens?

YES YES YES. ROARIN AWESOME. the littlun had no chance against these color full monsters

Awesome 👍

Amazing! 😃

I meant colourful monsters

Fantastic!

scary but hella fucking amazing

Sounds like THX Deep Note.

"I AM ROBOCOP, "YOU ARE UNDER ARREST. COME QUIETLEY ORE THERE WIL BE TRUBLE."

What is the red light for

Brakes are too quick on first one