Portable with wrist strap and ultra-light at only 230g, it easily fits into pockets or gloves. Dual 5000mAh large-capacity batteries deliver long-lasting warmth and support 3.5-hour fast bidirectional charging. 4 adjustable temperature settings (40℃-54℃) for varied warmth needs. Detachable twin units can be used separately, perfect for sharing. Smart Safe Temperature Control
