Product type	Where to look
TVs & Home Theater	The sticker is on the back panel of the TV, often near the ports. Most smart TVs also show the model code in the settings menu under Support or About, which is easier than pulling a mounted TV off the wall.
Headphones & Speakers	Earbuds print a small model code inside the charging case lid or on the stem. Headphones use the inside of the headband.
Heating, Cooling & Air	Thermostats show the model on the back of the faceplate or in the settings menu. Window units put the label on the side of the cabinet. Purifiers and dehumidifiers put it on the base or back.
Phones & Tablets	The model is in Settings under About. Some phones also print a model number on the SIM tray or back cover.
Watches & Fitness Trackers	The model is in the watch settings under About or System. The back case also has fine print with the model code.

Getting the official TCL manual

TCL publishes product documentation on tcl.com. Search there with the full model number from the label, then look for a documents, manuals or downloads section on the product page.

If your model isn't listed, try removing the last few characters, which usually only indicate color or region. For discontinued models, look for an archive or legacy products section, or contact TCL support directly.