The Alternative To Smoking. Water Vapor ~ Not Smoke! No Tar, No Carbon Monoxide, No Tobacco The Famous Yeti/510 Also known as the TECC Titan, Dura C, Janty Etc.. The e-cig you can FEEL! Advantage of a manual switch are -,1. Full control for how long you choose to inhale. 2. Allows for direct dripping on the atty which won't leak into & damage the battery. 3. Will not go off automatically & burn up your atomizer do to sound or vibration like some automatic e cigs. 4. 510s charge in one hour. No waiting 4 & 6 hours per charge.,, The 510/Yeti is haled by many to be the best of personal vaporizers! Simply put, The 510/Yeti ROCKS!