OC Pharm's vape pen line uses only premium BB Tank, the leader in vape technology. The all inclusive disposable pen is perfect if discretion and convenience is desired. There is no need to recharge the battery, it comes charged. Take an a vape pen anywhere that a traditional vape product is allowed. The pen is designed for 200, 5 second hits but generally lasts upwards of 250 hits. When the oil is gone, the pen is disposable.