Aluminum PCB, assembled and tested, no head band included.
Body heat powered ...
It work only max 10sec., then is forehead cold
This is more toy than practical device.
Thermoelectric generator glued on aluminum PCB.
Ultra low power boosting circuit.
No additional links provided for this product.
❤️ Special offer this week – I’ll cover the postage for you! ❤️ You pay nothing extra for shipping. ⚠️ Orders are shipped as a small package without online tracking, in line with current postal regulations. Please note: Tracking is not available.