5v2a charging head usb charger $ 4.20 Input parameters: 110220 (V) Output parameters: 5 (V) Type: Direct charge Charging current: 2000 (mA) Battery type: lithium battery Indication function: no indication function Interface: USB Working temperature: 0-40 degrees Celsius Storage temperature: -20-80 degrees Celsius Material: PC+ABS Input parameters: 1 00-240V Output parameters: 5V2A full power