It is a cordless and rechargeable bottle warmer designed for travel. The warmer has a capacity of 10-17 oz (300-500 ml) and can heat milk or water. It features multiple temperature settings, such as 98°F, 104°F, 113°F, and 122°F, and can warm milk in as little as 2-3 minutes. The device is made from BPA-free and food-grade materials, and it is designed for gentle, even heating to preserve nutrients. USB charger included