Gomadic Multi Port Mini DC Auto / Vehicle Charger compatible with Mio Moov R503T - One Charger with connections for two devices using upgradeable TipExchange Integrated TipExchange Technology protects your investment by providing a mechanism to change/upgrade your charger by simply swapping the physical charging tip. Mio Moov R503T specific tip as well as standard microUSB and Female USB tips included. Additional tips sold separately. Advancements in circuit minimization provide a full 10W of available charging current to an adapter comparable in size to a US quarter. Considerably higher available current (2000mAh) when compared to standard Mio Moov R503T vehicle chargers. Extremely compact and with a powerful advanced circuit design that provides precision voltage and current regulation specific to the Mio Moov R503T (accurate to 0.1v). Secondary charging port is available for optional charging of second device. Specification: Input Voltage (12 - 24 vDC), Cable length (50 inches), Product Dimensions (1.5 X 0.75 inches), Circuit Design (Mio Moov R503T Supported), Charging Ports (Two). Well designed, using high quality components and a durable case. Backed by our Gomadic Lifetime Warranty.