It’s a pen battery that’s also a real pen—meet the Cart Pen by Smyle™ Labs, where form meets function in the most discreet way possible. This patented design perfectly mimics a traditional writing pen, delivering unmatched stealth and style for your aromatherapy experience.
Built from high-quality, durable materials, the Cart Pen is engineered to last while blending seamlessly into your everyday essentials. Whether clipped to a notebook or resting on your desk, it looks just like any other pen—until you need it.