The Muze Key Fob Style Variable Voltage 510T Vape Battery w/ Built in USB Charger

The Muze Key Fob Battery for 510 threaded Oil Cartomizers.

Features: 

• 5 Clicks On/off safety feature
• 3 click to change voltage
• Built-in USB Charger
• Limited Lifetime warranty
• 2.8V - 3.2V - 3.7V