NAFUJAT Peltier Cooling Backpack [First In Japan] Dual-Use Cooling and Heating, Temperature Adjustable from -21°C To 50°C, 20000mAh, Back Cooling,

This Peltier backpack features four cooling and heating pads! Instant cooling (approx. -21°C) and instant heating (approx. 50°C). This high-speed model cools or heats by approximately 1°C every 0.5 seconds! Three temperature settings: Cooling mode (strong: -21°C, medium: -18°C, weak: -15°C) and heating mode (strong: 50°C, medium: 45°C, weak: 40°C). Powered by Type-C. Includes a 20,000mAh battery. Quiet operation for use in noise-sensitive environments. Compliant with Electrical Appliance and Material Safety Act. PSE certified. 6-month warranty.