stainless steel spring loaded firing button e cig matrix telescope

Matrix telescope 
1:telescope mod 
2:variable voltage 3.4V, 3.7V, 4.0V 
3:fit with multi batteries. 
4:battery protection 

e cig telescopic mod ,vv mod Matrix Telescope 
1:telescope mod 
2:variable voltage 3.4V, 3.7V, 4.0V 
3:fit with multi batteries. 
4:battery protection

Matrix telescope advantage

* 1.5 click lock function
* colorful

* different volt different button color
* 16340 battery
* 3 heater(wick)

1. can use 1 or 2 pcs 16340 battery,
2. 3.7 v when button light is red,and mix red and bule is 3,7v,blue is 4.2v