Leaked Sony WH-1000XM4 listing confirms June 23 release date, no aptX support and last-generation QN1 noise-cancelling processor - NotebookCheck.net News
ヨドバシ.com - ソニー SONY WF-1000XM4 B [完全ワイヤレスイヤホン Bluetooth/ノイズキャンセリング対応 DSEE Extreme搭載 ブラック] 通販【全品無料配達】
Sony WF-1000XM4 review - GSMArena.com news
Sony Launches New WH-1000XM4 Headphones with Next Generation Adaptive Noise Canceling | audioXpress