Simple and Convenient: PowerPort Wireless 5 uses wireless technology to simplify charging into just setting down your phone. Charging Indicator: Use the on/off switch to turn on the LED ring and see charging status at a glance or turn it off when you don't want to be disturbed. Advanced Safety Features: Anker's patented MultiProtect provides temperature control, overcurrent and overvoltage protection, and more to ensure complete safety for you and your devices. Worry-Free Warranty: At Anker, we believe in our products. That's why we back them all with an 18-month warranty and provide friendly, easy-to-reach support.