UFO Sighting in Penn Hills, Pennsylvania on 2017-07-04 00:00:00 - Seen silver circular object, it then went to green, then red then pulsated for around an hour then went to blue and flew left circled then looked to be decending then went into the vantage point

I was sitting on my porch waiting for fireworks but was unable to see any when i spotted a circular object which was silver in color. pretty far up.. i then seen it turn a green color, then red and it was pulsating. once in a while it would disappear, figured it was over the clouds, which were minimal. it remained stationary so i went into the house to get my binoculars. i then checked the time..10:44 pm.I then see it release about 5 circular objects. they were clear except the out line was a gold color. i did nt see where they went. i then began pulsating and changing colors.. my next door neighbor came out and asked about the fireworks and i told him i didnt see any but directed his attention to the object.. he asked what it was and i said i dont know. he suggested a drone, i then explain how it was stationary for about 30 to 40 minutes and how the colors were changing. he then seen the activity and was as dumbfounded as me. he then said it looked to be about 1300 feet (?) up .. dont know how accurate. while we were watching, the thing got brighter and turned blue and veered to the left pretty rapidly, i stood up then and said it must be done when the thing made a circle and came back past the area. it seemed to be descending as it made its way across the sky. i lost sight at it went toward the horizon. the path it took i believe was east.