Wismec Sinuous FJ200 Vape Mod is a fresh look at an Internal Dual Battery Device. Its design features the addition of an updated centered 510 and larger OLED. Featuring an innovative temperature protection technology, the safety of charging will be greatly enhanced. The 200W max output and 4600mAh battery are engineered to deliver a satisfying all day vaping experience. The Sinuous FJ200 Battery and Divider atomizer kit show the attention to detail that only Wismec can deliver.