1.8% nicotine by volume. Electronic cigarettes done right. No ashes, virtually odorless, & easy to use! The essentials. Includes: (2) hybrid vaporizer cartridges; (1) Metro rechargeable battery; (1) USB charger; (1) user's guide; (1) deluxe carrying case. www.metroecigs.com. Innovated in the USA, made in China.