Get the power you need in sleek, modern style with the Pulse Drop Battery. Featuring exclusive draw-down technology, this unique 510 battery ensures you get the most out of your cartridge. Get innovation and reliability with the Pulse Drop Battery! Designed to be part of your everyday carry, the Pulse Drop packs the punch you need for cartridges. Drop your cartridge in, inhale, and let the Drop take your cartridge to new heights! Featuring Vuber's patented "Never Burn" technology, the Drop will select the appropriate voltage for your cartridge (based on the resistance of the cart), and will taper down the voltage as you inhale! - “Never Burn” technology, tapers the heat as you draw, which allows you to attach any cartridge and be certain you will have the best flavor to vapor experience. - Reads the resistance of the cartridge and automatically adjusts the settings for optimal use. - Suction activated - vapor on demand. - Two attachment points for necklace, lanyard, keychain, or other attachments! - 400mAh battery allows for long uses between charging. - Pass-through USB-C charging lets you use the device even when plugged in to charge. **Larger diameter cartridges not compatible - Maximum Cartridge Diameter is 0.47 inches/12 millimeters**