Dual 18650 High Amp Battery (Not Included) Wattage Output Range: 5-220W Resistance Range: 0.03-5.0 ohm Bypass Mode TCR Adjustment- 2 Memory Modes Super Player Mode- Broad Tank Resistance ID OMNI Board 4.0 Chip Set- 0.001s Insta-Fire 2.0" TFT Full Color Display Side Fire Button Design LED Light Indicator Bottom Loaded Magnetized Battery Cover Short Circuit, Burn, No Load, Overtime, Low Resistance, Low Power, Overcharge, ESD Circuit and Pass Through Protection Micro USB Port- 2.5A Max Charge Centered 510 Stainless Steel Connection