The sleek Jane West Day 510 Vape Battery is designed with compatibility for a variety of 510 thread cartridges. Equipped with a variable voltage dial, a centrally located power button, and our recognizable sun icon for selecting your preferred Day cartridge, this battery is a must-have accessory for your vaping needs. Simply attach your cartridge, power on with the button, and adjust the temperature using the dial on the base. This battery also comes with a USB charger base in a unique geometric shape, ensuring convenience for charging. Cartridge not included.