Introducing the Vape Saber: This discreet battery allows you to hide your cartridge when when not in use, then flip it open. It also has an attached USB cable - never lose your charger again.350 mAh battery compatible with all 510 thread cartridges - including all sold by TribeTokes. Also serves as a keychain.Instructions For Use: Press power button 5x to turn on or off. Hide cartridge when not in use, then flip open to vape. Hold down battery button while inhaling.