2 USB connectors: for simultaneous charging of smartphone and tablet. Splash waterproof with protection: suitable for outdoor use. Automatically shuts down during short-circuit, high temperature, over voltage, under voltage. Easy connection: Faston connectors (model A) or M8 (model B) for easy connection to the battery. Warranty: Two years Dual USB Adapter cable with Faston connectors (for 12V07 / 12V18 AV) to easily charge smartphone or tablets on the waterside with a 12V Rebelcell battery.