MoKasi&reg; Stainless Steel 3.1a Dual USB Port Safety Hammer Escape Emergency Car Charger for Iphone Samsung Sturdy and durable; it is built-in top-grade chip to ensure your devices receive full power and also full safety. And it is also made of premium aluminum alloy, prolongs the product's life, sturdy and durable. Efficiency; built with dual USB ports, you can charge two devices simultaneously. Easy to use; Just insert it to the cigarette lighter. The compact size makes it convenient to use. The unique appearance brings you a fashion and unique life. Safety Hammer; Can be used as an emergency safety hammer. Applicability; Poor contact problem does not occur when using different models.