Motion-Powered Adventure Audio
A self-powered portable speaker system using thermoelectric technology combined with a kinetic yoyo-style flywheel charger. No batteries. No solar. Just motion.
Join the RevolutionInspired by magma heat, converts temperature differences into usable energy. Works anywhere, anytime.
Spin it like a yoyo for 30 seconds, get 4 hours of crystal-clear audio. Store rotational energy, play forever.
Gramophone-inspired sound signature delivers rich, warm audio that digital speakers can't replicate.
You're camping miles from any power source. You pull out Volva, give the flywheel a 30-second spin like a yoyo, and it plays crystal-clear music for 4 hours. When your phone dies, you plug it in and spin again - your phone charges from the stored rotational energy. No sun needed, no batteries, just motion.
For outdoor enthusiasts
Direct-to-consumer
REI & Backcountry distribution coming soon
For NGOs & Emergency Prep
Volume: 500+ units
Disaster relief & emergency preparedness