Indulge in the ultimate vaping experience with the MMD Shops Jersey City Variable Voltage Battery 350 Mah + USB Charger. Tailored for your 510 cartridges, boost your vaping game with three customizable voltage settings, an innovative pre-heat function, and illuminating LED lighting. Simply touch five times for power on/off, three times to adjust the voltage, and twice to activate the pre-heat function. The oval button effortlessly manages voltage settings from 2.1v to 2.8v making it adaptable to your unique preferences. Perfectly compatible with Elite, Elite Live, and Essentials, this premium device is available exclusively in an elegant black color. Connectivity to power is seamless with the inclusion of a USB Charger, ensuring your vaping session lasts uninterrupted. Experience the handiness of this versatile and sleek unit with an intuitive pre-heating functionality, seamlessly merging innovation with convenience.