This cutting edge signature Saber battery conceals your cartridge within the device, and flips it out at the click of a button. This keeps your mouthpiece clean, prevents it from breaking in your pocket, and is fun to use. The Saber is also perfect for discreet travel as it doubles as a faux car key. And for those of us who are on the forgetful side, a built in charger ensures you’ll never be left without a USB.