Overview The iHood Heated Vest are equipped with 4 heating zones and 3 heating modes. 2022 upgraded 7.4V heating element and battery pack can heat the jacket to 158?/70? in just seconds. It provides the perfect combination of warmth, functionality and durability. •Package include: Women's heated vest x1, Exclusive fashion bag x1, 7.4V battery pack x1, User manual x1. Features An easy-to-see LED controller with three temperature settings Preheat function can instantly heat up to 158°F 3 Heating Areas total 4 Heating Panels Waterproof and Wind-resistant Light and compact vest | Weight: 286 g in size S-M 100% Machine Washable Thermal efficiency • Preheat mode: 3 seconds to reach maximum temperature • 4 Heating panels make up 3 heating Areas:Neck/Front Chest/Back • Adjust 3 heating settings (High, medium, low) with just a simple press of the button • Heating temperature up to 158°F/70°C, 30% higher performance than similar products • Working times: Low: 7 H . Medium: 4 H . High: 3 H (All heating area working )