Features: Experience all-day warmth with our 2-zone heated seat cushion, designed to lock in heat and withstand cold weather. The USB power interface allows for easy use with a portable battery pack, ensuring you stay cozy in any outdoor setting. 2.Advanced Materials: Crafted with composite carbon fiber heating wires, our warm seat pad provides durable warmth to keep you comfortable. The skin-friendly, scratch-resistant, and waterproof fabric enhances your sitting experience, while the anti-slip bottom ensures stability on various surfaces. 3.Versatile Use: Whether you're camping, lounging on a sofa, or driving, this heating seat cushion adapts to all your needs. It's perfect for outdoor hunting, fishing, road trips, hiking, and even indoor activities like yoga, offering unrestricted usage across scenarios. 4.Easy Maintenance: Say goodbye to washing worries with our outdoor seats cushion that supports both machine and hand washing. For machine wash, simply place it in a laundry bag for hassle-free cleaning, maintaining hygiene and comfort effortlessly. 5.Comfort Anywhere: Transform any seat into a haven of warmth, from camping chairs to car seats. Our portable sponge cushion is ideal for those who love outdoor adventures or seek extra comfort at home, providing a portable solution to stay warm in any environment. Specification: Origin: Mainland China Blue Material: 600d Oxford Cloth + 2cm Pearl Cotton + 3cm Memory Cotton + Heating Sheet Gray Material: 600d Oxford Cloth + 12-An Washed Canvas + 2cm Pearl Cotton + 3cm Memory Cotton + Heating Sheet Color: Blue, Gray Size: 46cm/18.1in*38cm/15in*5cm/2in, Side Pocket 20cm/7.9in*17cm/6.7in Heating Element: Composite Carbon Fiber Heating Wire Power Supply Interface: USB (Self-Provided Power Bank)