The Rolo Badge e-cigarette kit from Smok is a pod system style device which features Smok’s air driven technology. This means, there are no buttons! Simply inhale to produce vapor from the e-cig. With 2 filling slots, this device makes it convenient to refill its 2ml tank. Tip: Leave the e-liquid to stand after filling so that the e-liquid saturates the organic cotton in the coil completely. Recommended stand time is 2 – 3mins.