Silky Smooth Clouds Take your vaporizing on the trail with the Wulf Mods SLK Vape Pen! These excellent 510 threaded compatible pen style batteries have a choice of 3 different voltage settings (2.8, 3.4, 4v), an enhanced 15s preheat function, and is conveniently charged via its included USB connector. Choose between the two color options - black and silver - to start your SLK vaporizing journey today! Loading A Cartridge Into The SLK To load the SLK simply choose your desired cartridge and then attach it via the 510 threaded connection until the two pieces are snug against each other. Using Your SLK To turn on the SLK press the power button 5 times in a row, when done simply press it an additional 5x and it will power off. When on, hold down the power button and inhale from the mouthpiece to enjoy the silky smooth power of the SLK. Adjusting The SLK’s Temperature The SLK comes pre-programmed with a trio of distinct temperature settings that can be cycled between by clicking the power button 3 times in a row. Pre-Heating Your SLK To start the preheat functionality press the power button twice (2x) in a row and watch as the SLK spends the next 15s expertly preparing your oils for a truly super charged hit. How To Charge The SLK To charge the SLK make use of the included USB charging adapter. Never charge the SLK for longer than 1 hour at a time. How To Clean the SLK To clean the SLK make use of a dry cloth for the exterior and take care of the threaded connection by using a q-tip or swab lightly damped with isopropyl alcohol to swirl around it. What’s Included: (1) Wulf Mods SLK Vape Pen (1) USB Charger