ออร์นิทอปเตอร์พลังงานแสงอาทิตย์ 'คาคุ'

Watched it catch the afternoon sun on my desk and it just started flapping on its own, no wires or batteries needed. The wings move with a steady rhythm that’s oddly calming, and it’s quiet enough to keep near my monitor while I work.

The first time I took it outside, I was genuinely surprised how smoothly it flaps with just sunlight hitting the wings. No batteries, no charging, just set it down and it takes off on its own once the light is strong enough. It's become my favorite little desk toy for sunny afternoons.

Set it on my desk near the window and within a minute the wings started fluttering on their own—no battery, no wires, just sunlight doing all the work. It's surprisingly quiet too, which makes it a nice little distraction during work breaks.