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Your favorite DAB+ and FM radio stations always with you
5mm jack plug: For wired connection of an audio source to the built-in speaker
Lightweight and portable outdoor design
STEM education at the highest level: The child learns in practice about solar energy
For trickle charging of small 12V batteries (an external charge controller is always recommended when connecting to batteries
POWERplus Bob Cat Saltwater Car STEM Kit toy Your favorite DAB+ and FMBuild Your Own Saltwater Buggy The POWERplus Junior Bob Cat is a DIY STEM construction kit that allows children to build a working buggy powered by a saltwater fuel cell. It combines hands on construction with energy based learning. Saltwater Fuel Cell Technology The vehicle runs on a magnesium air (Mg Air) fuel cell. After adding a small amount of saltwater solution, a chemical reaction generates electricity to power the motorno batteries required.