Safety guarantee: the intelligent electronic constant temperature control system is designed to cut off the power after 45 minutes of use to prevent users from being burned and improve safety. Rapid heating: using warm fleece fabric, the s-shaped curve car heating blanket heats evenly and quickly. It can be folded and stored in the suitcase or back seat without taking up too much space. Warm companion: suitable for many occasions, such as travel, camping, RV, or roadside emergency. Do not machine wash.