The last-gen Sony WH-1000XM4 headphones are now a staggering $220 off The VergeOctober Prime Day 2024: Everything you need to know ZDNetSony’s stellar XM4 noise-canceling headphones are 63% off for Prime Day PolygonSony’s WH-1000XM4 headphones are at its lowest price ever just hours before Prime Day CNN UnderscoredSony’s WH-1000XM4 headphones drop to a new low of $130 for Prime Day Engadget