Vista Edge is powered by a premium-grade battery and features a uniquely designed, sweeping collar that not only provides the necessary protection for your cartridge but essential visibility to what’s inside. Also available in Bahama, Very Peri, and Slate. * Features a protected, cartridge drop-in design * Fits most 510 thread cartridges (included cartridge is non-functional and for merchandising purposes only) * Powered by a high-quality 320mAh lithium-ion rechargeable battery core * 3-LEDs indicate battery life and power settings * Four (4) power/voltage settings (2.4V, 2.8V, 3.2V, 3.6V) * USB magnetic charging port + cable * Compatible with Base Charger and Rover Cases * Dimensions: 4.6"L x 0.53"D * Weight: 30g * Six (6) month limited warranty * This model ?does not? feature a removable transition module