1.with simple but elegant design
2.varaible voltage with three level: 3.5v(Red)-3.8(blue)-4.1v(white),can meet different customers’ demand
3.use high-tech glass fiber material,three colors(red blue silver)for option
4.innovative design on power button with sheild appearance
5.510 thread connector
6.with micro usb charger port at bottom-more convenient charging anytime