Got my Sony WH-1000xm3 when they came out. And after 4 years it's time to replace the battery. Hope to get 2 years more of life at least. If more then I'm
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Fixing my WH-1000XM3 battery convinced me of the right to repair
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Sony WH-1000MX4 WH-1000xM3 Replacement Battery: BatteryClerk.com
Sony WH-1000XM3 Review: King Of Noise-Canceling Headphones - SlashGear
Sony WH-1000XM3 Review | The Master Switch
Sony WH-1000XM3 Battery Replacement - iFixit Repair Guide