HQRP Pair of Solar Powered Flying Fluttering Butterflies Yellow Monarch and Blue Swallowtail for Garden Plants Flowers plus UV Chain/UV Health Meter HQRP&reg; 2 Solar Flying Fluttering Butterflies (Yellow & Blue) Powered by Sun or AA Battery plus HQRP&reg; UV Chain / UV Health Meter; Beautiful butterflies that flutter their wings hovering above your favourite flower and occasionally flying all the way around it - simply amazing and looks incredibly realistic! The small solar panel converts the daylight into energy for the butterfly and the brighter the weather the more active her flying is. When the skies darken you can switch the energy source to the backup AA battery (not included). Due to the position of the 2 butterflies, they will be fluttering in the wind like a spinner, even with no sun and battery being off. 100 days warranty!