Yocan Black Series Case - Sleek, Discreet, and Powerful Elevate your vaping experience with the Yocan Black Series Case, an innovative 510 battery that seamlessly combines style, portability, and performance. Designed to look just like a sleek headphones case, this compact powerhouse is perfect for vapers who value discretion and convenience. Key Features: 450mAh Battery: Enjoy extended vaping sessions with the robust 450mAh battery, ensuring you stay powered up throughout the day. Discreet Design: Its unique design mimics a headphones case, allowing you to carry and use your 510 cartridge without drawing unnecessary attention. Preheat Function: Activate the preheat function to get your 510 cartridge ready for smooth and flavorful hits every time. Adjustable Voltage Settings: With 4 voltage options ranging from 1.8V to 4.2V, you can customize your vaping experience to suit your preferences, whether you prefer gentle draws or powerful clouds. Ultra-Compact Size: Measuring just 1.85" x 2.36", the Yocan Black Series Case is small enough to fit comfortably in your pocket or purse, making it the ultimate on-the-go companion. USB-C Charging: Equipped with modern USB-C charging, it ensures quick and efficient power-ups, so you spend less time charging and more time vaping. Discover the perfect blend of style and functionality with the Yocan Black Series Case. Its innovative design, combined with advanced features, makes it an essential accessory for any vaper looking to enhance their vaping experience in the most discreet and stylish way possible. Get yours today and vape with confidence and convenience! Cartridge Not Included**