The Vaporite Humite L Vaporizer is compatible with all types of e-liquid/e-juice and features an advanced oil tank for efficient vaporization. Unlike many other vaporizers that use a wick to soak up the juice, the Humite uses a wickless design and is extremely easy to fill. Each unit includes a battery, usb charger, mouthpiece, oil tank, and 2 replacement heating coils. This larger model of the Humite utilizes a 1600mah battery and a bigger oil tank for holding your e-juice. The newest model (version 2.0) includes Bluetooth technology that syncs with any smartphone to monitor usage, temperature and battery level.