The SXmini MQ Class box mod is a compact single 18650 vape mod powered by the YiHi SX416J chipset. (J stands for Joule, indicating support for temperature control technology.) Small in size, but powerful and flexible, it supports wattage mode, temperature control, and VT Coil mode. This guide explains how to use MQ Class, including basic setup, vaping modes, and maintenance tips. Battery & First Setup • Open the battery door• Insert one 18650 battery (negative side out)• Close the battery door First use:• Press fire button 5 times → power on• Attach atomizer• Adjust wattage• Start vaping Tip: Use high-quality batteries for stable performance.• Do not use damaged batteries• Check battery wraps regularly and make sure they are intact before use Basic Operations • Power on / off → press fire button 5 times• Lock / unlock device → press fire button 3 times• Adjust wattage → use Up / Down buttons• Lock buttons → hold Up + Down for 3 seconds Simple control makes it easy for daily use. Vaping Modes Explained Press fire button 5 times to enter the main menu: • Wattage / Voltage Mode• Output range: 1–60W• Displays puff count, voltage, resistance, battery • Temperature Control (TC Mode)• Supports SS316, Ni200, and TCR wires• Auto resistance lock at room temperature • VT Coil Mode (SXmini Technology)• Designed for SXmini VT Coils• Select “LOCK NEW” for new coil• Select “USE OLD” for used coil• Provides Anti-Burn protection under correct coil conditions • Smart Curves (Power Curves)• Preset: Soft / Neutral / Hard• Customize output curve for…