product characteristics : 

the general mobile mobile phone battery travel charger 

quick charge , automatic constant current control , prevent battery overcharged , short circuit and electronic shock. 

small size , compact structure , perfect travel . design for battery charge fast , safety , prolong the battery life span

and performance , led charge indicator lamp 

input voltage : ac 110-220v 

output USB 5V 1.2A,  Battery charger 4.2V 800mAH