Big bright blue crystal ball-like light with aura emitting sound

A big bright blue crystal ball appeared outside of my kitchen window about 50 yards away. The people behind me own 70+ acres of big open land, so it looked like it could have been over that land. It started small and got rapidly bigger, emitting an intense blue light with an aura around it. It made a noise at the same time, sending my dogs to run to the door and bark. The noise was a zing or the sound of a garage door opening (we don’t have a garage) and I thought the power was going to go out, but it didn’t. I couldn’t take my eyes off of this. It last about 3 seconds, then rapidly disappeared. I peered outside and did not see anything afterwards. It was not high up in the sky- it was about tree height. I considered lightening, cop car, firework- none of which it was. There was no other explanation for the weird phenomenon I saw.