Eleaf Invoke with ELLO T KitCompatible Battery: 18650 Short circuit Protection Function: Yes Temperature Control: Yes Nominal Capacity: None Atomizers Identification Function: Yes Monitoring Function Of Smoking Number: Yes Brand Name: Eleaf Appearance: Box Shape Overheating Protection Function: Yes Type: Without Battery Compatible Model: Electronic Cigarette Box MOD Vape TCR Adjustment Modes: Yes USB Charger: Yes Display screen: Yes Material: Metal Silicone Case: No Firmware