Lrker Universal USB Wall Travel Spare Battery Charger with Green LCD Indicator for LG G4,G3,G2,Sumsung Galaxy Note 4 3 2,S5 S3, Huawei HTC Moto Nokia,etc This USB Wall Travel Battery Charger,rapidly charges your phone by USB Port and your spare battery by the Adjustable dock at the same time. Adjustable dock fits battery width: 1.18 ins/30mm-2.36ins/60mm inches As a travel charger, it is designed to be used anywhere in the world. Cool Green LCD Indicator Screen shows battery remaining capacity: 25%,50%,75%,100% When charging, This charger has no influence to cell phone signal. Smart built-in IC chip,protections against over heat, short circuit, overcharging and electronic shock