Comfortable and cozy, the rechargeable electric graphene foot warmer will delight those with cold feet. Quick and consistent warmth. Thanks to its ultra-thin graphene heating system, this foot warmer guarantees fast and even heat distribution with low energy consumption. 3 heating levels with OneTouch. Choose your level with the OneTouch control: green light (low), blue light (medium), red light (high). Automatic shut-off after 30 minutes for safe use. Soft and washable cover. The fleece cover is removable and machine washable at 30°C. The exterior can be easily cleaned with a damp sponge, making maintenance simple. Up to 5 hours of autonomy. Equipped with an external 5000 mAh battery, the graphene foot warmer offers up to 5 hours of autonomy depending on the heating level. The battery can be discreetly stored in an integrated pocket.