What is the fine-grained topic of the following text: The iJoy's CAPO 21700 100 TC Starter Kit is the next performance platform to elevate today's modern vape systems, utilizing a brand-new 21700-sized battery within a beautiful compact device to pair with the new Captain Mini Sub-Ohm Tank. Only return the topic.
iJoy's CAPO 21700 100 TC Starter Kit Review