usb pass through 1.CE,FCC,ROHS 2.USB Port 3.4 Voltage ... selling Variable Voltage 3.2~4.8V usb pass through Specifications:1.Model: VV Pass through Battery2.Style:Smart Design3.Voltage: 3.0V/3 ... 4.8V, light color from Blue to Green.4.Come with USB Cable(Port)5.Battery threads: 510 threads6.Power Switc ... CE/ROHS/FCC Shipping way EMS,TNT,DHL,UPS,FEDEX/Air transport How to order: 1. Tell us which models, ...