Wired Earphones
No audio lag. The baseline for reading what you cannot see.
What it changes
Sound often carries information the screen does not. Footsteps behind the brush, the recall channel starting on an enemy, someone's ultimate going off outside your vision. These only matter if you move the instant you hear them, so any delay eats their value. Wired has no conversion step and therefore no lag. Being wired matters more here than being expensive.
What to look at
Match the plug to your phone — 3.5 mm or USB-C. Cable length and routing matter in practice, because a cable brushing your hands is a distraction. Get a mic if you use voice chat. Heavily bass-tuned earphones can bury footsteps. Where you need to hear the room, do not force the most isolating option.