Smart Charger, Smart USB Charger Output DC4.2V Input 5V Overcharge Overvoltage with LED Indicator for USB Adapter
Specification:
Item Type: Smart USB Charger
Material: ABS
Interface: USB
Input Voltage: 5V
Output Voltage: DC4.2V
Output Current: 420mA
Package List:
1 x Smart USB Charger
2 x Charging Heads