The Cartisan Veil Bar Flow takes sesh tech to the next level with built-in smoke-blowing fan technology for hands-free, shareable Flow Mode. With five precise voltage settings, a powerful 650mAh battery, and support for cartridges up to 2g, this 510-thread device is perfect for both solo and group use. Activate it by auto-draw, OR two-click Flow Mode for effortless clouds. ** DEVICE DOES NOT HAVE TO BE USED ONLY IN THE SHAREABLE FLOW MODE ** Power Output: Yellow - 1.8V Purple - 2.4V Green - 2.8V Blue - 3.4V Red - 3.8V Battery: Built-in 650mAh Capacity: Cartridge up to 2g or 14mm Size: 99.3mm x 42.3mm x 20.4mm Packaging Size: 131mm x 105mm x 131mm Charging: Type-C Pre-Heat Function: No Thread: 510 Display: LED Lighting Activation: Auto-Draw OR Flow Mode (OPTIONAL) Built-in Fan for Shareable Flow Mode ** OPTIONAL MODE ** Two (2) Button Click