Battery module suitable for Vulpés beanie hats (Vulpini, Cinera and Polar)
 
Key highlights of the product: 
 
- Curved hard shell design for better for to the head
- Contents Lithium Polymer Battery (1200mAh) and a wireless module (BLE 4.0)
- Water resistant (IPX2)
- Covered with fire-resistant material
- Charged with micro USB
- Suitable for power banks by using of Vulpés charging system