Hotspot Pillow Lungo / Quadro

• Where can I find the batch number of the Hotspot Pillow?
• How hot does the Hotspot Pillow get?
• How big is the heating element of the Hotspot Pillow?
• What are the dimensions of the battery of the Hotspot Pillow?
• My Hotspot Pillow has some stains or dirtspots.
• How do I wash the Hotspot Pillow?
• My Hotspot Pillow is not heating
• Manual Hotspot Pillow Lungo/Quadro