TF3 EGO VV USB Passthrouogh Battery Features:
1.Detachable mental head.
2.Full power battery、 EGO heads.
3.Output Voltage:3.3v-4.2v.
4.Mirco B usb passthrough:mobile phone port--customers can charge with their owncellphone usb line.
5.Material:Vacuum Coating.





TF3 EGO VV USB Passthrough Battery with G-1 Atomizer:
