Specifications – Wireless Protocol:QI – Universal Compatibility:Qi-certified by WPC (wireless power Consortium) to support wireless charging on all Qi-enabled devices – Input: 9V/2A or QC3.0 Adapter (Please provide the corresponding input current and voltage as required. Otherwise, it may not work properly.) – Output Powr: 5W 7.5W 10W 15W – Charging Efficiency: 75% – Charging Distance: 6 mm – Housing Material: Tempered glass+ Alloy + Cloth – Contains retail packaging – AC adapter not included – Highly Recommended to Use the 9V 2A Or QC3.0 Adapter To Achieve a perfect working experience