Looking for discretion without sacrificing performance? The Car Key Penjamin by Smyle Labs is a sleek 510 vape battery designed to look like a car key fob, offering stealth and convenience in one compact device. Whether you're out in public or on the go, this high-performance battery ensures discreet vaping in plain sight. Features: Stealth Car Key Design – Blends seamlessly with your keychain for ultra-discreet sessions. 510 Cartridge Compatibility – Works with both 0.5g and 1g cartridges (not included). Customizable Experience – Three adjustable voltage settings for tailored sessions. Preheat Function – Prepares your cartridge for smooth, optimal performance. USB-C Rechargeable – Fast and convenient charging with the included USB-C cable. Stylish Colors – Available in Black, Silver, White, and Gold for a sleek, modern look. How to Use: Remove the top of the car key battery. Attach the gold magnetic adapter to the bottom of your 510 cartridge. Drop the cartridge inside the battery chamber—no twisting required; the magnet secures it in place. Replace the top cover, using the longer cover for larger cartridges if needed. Press the "unlock" symbol 5 times quickly to power on. Click 2 times to preheat or 3 times to adjust the temperature. Recharge as needed with the included USB-C cable. Enjoy discreet, high-performance vaping anywhere with the Car Key Penjamin – the ultimate low-key vape battery!