1.Dimensions: 2.8*1.4*0.65cm ( USB part ), Diameter 6.9cm, 3.49mm thickness ( Charge Pad ), 100 cm ( wireless charger cable).      
2.Working current: ≤ 2000mA                          
3.Stanby current: ≤ 50mA                          
4.Input voltage: DC 4.8~5.5V              
5.Output power: ≥5W                            
6.Reaction temperature: 0 ～ 50℃    
7.Working heat up range: ≤15℃, average 12℃                    
8.Working ambient humidity: ≤90%; IP67 (wireless charger pad)