At just 2 inches (5 cm) tall, the GiGi Thick Oil Vaporizer packs a surprising punch for a pocket-sized vaporizer! With its long lasting 500 mAh battery, the GiGi will never let you down. This oil vaporizer has a recessed, spring loaded cartridge slot with 510 threading to avoid cartridge lock. Its 3 variable voltage settings and pre-heat function allow you to customize your experience to perfection, and soft LED lights alert you to voltage changes and low battery. Includes a 6 month limited warranty. HIGHLIGHTS Stealthy 2" (5 cm) profile 500mAh Battery - rechargeable Spring-loaded 510 threading Pre-heat function Variable Voltage (3.4V, 3.7V and 4.0V) Replaceable 0.5ml ceramic cell cartridge (sold separately) Rainbow LED light for pre-heat mode (2 clicks after turning on)