Features:

• Adjustable Voltage (3.3V to 4.8V)
• Large 900mAh battery
• 20 second fire time to heat large cartridges
• Charger included

Instructions:

Click button 5 times to power on/off.

Preheat mode – Click twice to activate a 15 second low-power preheat for thick oil cartridges.

Charging – USB charger glows red when charging, and will switch to solid green when the battery is fully charged. Button ring light on battery glows red when charging.