The UWELL Caliburn Koko Prime is a popular pod system kit from the well-known vaping manufacturer UWELL. As of my last knowledge update in September 2021, here are some key features and information about the Caliburn Koko Prime:

1. Design: The Caliburn Koko Prime is known for its compact and sleek design. It's designed for portability and ease of use, making it a suitable choice for both new and experienced vapers.
2. Pod Cartridge: The device uses replaceable pod cartridges, which can hold e-liquid. The pods are refillable and compatible with replaceable Caliburn G coils. It usually includes two pods in the kit.
3. Coils: It utilizes the Caliburn G coils, which are available in different resistances. The coils are well-regarded for delivering excellent flavor and vapor production.
4. Battery: The Koko Prime is powered by an internal rechargeable battery, and the kit usually comes with a USB-C charging cable. The battery capacity can vary.
5. Adjustable Airflow: Some versions of the Koko Prime may have adjustable airflow, allowing users to fine-tune their vaping experience.
6. Draw-Activated: It is typically a draw-activated device, meaning it doesn't have buttons. You simply inhale to activate the device, making it user-friendly.
7. Safety Features: It includes safety features such as short-circuit protection, low-power indicator, and open-circuit indication.
8. E-liquid Compatibility: The Koko Prime can be used with a variety of e-liquids, including both nicotine salt and regular freebase e-liquids.

Please note that product details and specifications can change over time, so it's important to verify the latest information from UWELL or reputable vape retailers for the most up-to-date details, features, and user reviews about the UWELL Caliburn Koko Prime.