The Blazy Susan Classic Pen Battery combines elegance and functionality, giving you complete control over your vaping experience. Featuring three voltage settings and a full LED screen dashboard, this sleek and versatile pen battery is perfect for any 510 thread cartridge. Specifications: Fits 510 Thread Carts USB-C Charging 650MAH Battery Voltage Settings: 2.8V | 3.4V | 3.8V LED Dashboard Comes in a pack of 30 *Does not include cartridge or USB-C charging cable With a powerful 650MAH battery and USB-C charging, the Blazy Susan Classic Pen Battery ensures long-lasting use and quick recharges. Elevate your vaping game with this classic black pen battery, available in a convenient 30-count display.