To achieve maximum satisfaction, flavor and vape production from your Supherb battery, only pair it with an authentic Supherb THC premium cartridge (sold separately). Product Features: 510 connector Built-in Battery Capacity: 300mAh Supported resistance range: 0.3-2.6Ω Constant output voltage: 2.8V Continuous firing time: 10S Dimensions: 98mm x 15.5mm width 65mm - battery height 33mm -...