Universal compatibility for all Qi enabled wireless charging devices or devices with Qi receiver. (Qi receiver not included here). Easy to use – simply drop phone on the pad to start wireless charging. It has anti-slip silicon ring to fix the phone well and protect the devices from dropping. The Charging condition will come with the indicator lights to show you whether your phone is charging. Power source : any charger 500-2100mA with Micro USB cable or even plug it directly into usb port of the computer or adapter or even power banks. Input: 5V / 500mAh to 1500mAh; output: 5V, 1A max. A wireless charger set needs a transmitter/pad + a receiver. Both are must. Some phones had built in the Qi receiver originally,such as Samsung S6 Edge, S6,Nokia 920, Google Nexus 4/5; some phones needs an extra receiver card/case, such as iPhone and other Samsung devices. Please check the description for the phone models list. This package does not include Qi receiver and AC adapter. New other (see details): A new, unused item with absolutely no signs of wear. The item may be missing the original packaging, or in the original packaging but not sealed. The item may be a factory second or a new, unused item with no defects.