Sony Headphones WH 1000XM4 XM4 Ear Pad Cushions Replacements + Pry Tool Parts wf 1000xm3 battery Apple Watch Series 9 41mm Apple Watch Series 9 41mm Crown Dial 821 04506 This charger port has four contact points on the board when the original only had two These upgraded replacement ear pads for Sony WH 1000XM4 headphones are made to last longer and be more comfortable than the original while the replacement grey foam inserts help to relieve smells or stains that the originals may have had and make sure you get the most comfortable fitment These are thicker than the originals but do not cause any issues with the head detection sensor and use a high density foam inside that helps to better block outside noise along with a soft comfortable protein leather on the outside