I was with a group of friends watching the Old Home Days fireworks in North Walpole New Hampshire. About 2 minutes after the fireworks began, I noticed an object west of us. The lights were white red and green of the same strength sequentially and slowly changing colors. The object moved back and forth, further away and closer to the fireworks. The object moved quickly and stopped quickly, hovering the moving again. The object made no noise. At the end of the fireworks the light was just red and didnt change. I lost sight of it after that. There is artifact light from the street light in the videos. The object is at times directly above the street light but at a distance.