Simplex 2903-9002+2901-9833 March Time Test

[@sharipuckett6923]

At least they're not strobe lights. I've had a history of seizures.

[@Garrettroberts955]

I listened to this so long that I started hearing hippo

[@ImUncleDan]

That’s my school fire alarm

[@piktureit]

my favourite light plate combo

[@TonyaSnyr]

If you sett it to 0.75x it sounds like a simplex 2001