Super mini and portable VW box mod with 50W maximum output
Recessed 510 threading connection
Floating 510 center pin
Bottom micro USB charging port
0.66 inch OLED display battery capacity / atomizer resistance / power / voltage
Short circuit protection, low resistance protection and over heat protection
High voltage warning (higher than 4.5V)
Low voltage warning (lower than 3.0V)
Mech Mode and Wattage Mode switchable
Use single 18650 battery (not included)
Automatically stop working in charging status for safety's sake(charging while vaping is very dangerous and might damage both the battery and atomizer)

Variable Wattage:
Can be adjustable from 6.0W to 50W (in 0.1W increment)
Atomizer resistance check function
For 0.2 - 3ohm atomizers, the wattage could be adjusted from 6W to 50W
For 3 - 4ohm atomizers, the wattage could be adjusted from 6W to 20W  

가격도 $31.55  면 괜찮은것 같은데  디자인 별로인가요?^^