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Sony WH-1000XM4: Leaks confirm IR sensor and MediaTek Bluetooth chip for upcoming US$349.99 ANC headphones - NotebookCheck.net News
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New leak reveals the price tag of the Sony WH-1000XM4 in Europe as a new release date is mooted - NotebookCheck.net News
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Sony WH-1000XM4: Leaked product listing confirms design changes, Bluetooth 5.0, and 40 mm drivers; no support for aptX or aptX HD expected though - NotebookCheck.net News
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