This compact wireless charging pad uses Qi technology to charge compatible smartphones without messy cables. Simply place your Qi-enabled device on the pad and charging begins automatically at up to 1.0A output, delivering approximately 70% of the speed of traditional wired charging. The pad powers via the included USB cable connected to any universal 5V power source or wall adapter. Built-in safety features include surge protection, overheat protection, and over-charge protection that automatically stops charging when your device reaches full battery. The LED indicator displays charging status at a glance. Anti-slip feet keep the pad stable on any flat surface, while the lightweight design makes it easy to take with you for travel or office use. The pad measures 3.94 inches square and less than half an inch thick, fitting neatly on nightstands, desks, or countertops. Note that phones without built-in Qi capability require a separate wireless receiver accessory to use this charging pad. This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.