The Seed 510 Battery by FUME

FUME Seed Battery Features: Use: Concentrates Breath Activated Micro-USB Port for Easy Recharging Universal 510 Thread Compatible with Bottom aAirflow 510 Thread Cartridges No Wider than 11.2mm Grade A Lithium-Ion Battery Smooth Magnetic Cartridge Drop-In Variable Voltage Switch: 2.6V for Flavour and Terpene Retention 3.5V for Big Clouds Haptic Vibration Feedback for Intuitive Use SmartPulse Power Waves Maintains a Consistent Temperature Advanced Chipset for Extended Battery Life Long Lasting 350mAh