Both the Bose 700 and Sony XM4 do a remarkable and similar job of ... loud engine that creates 10,000 watts at 240 volts with both headphones, but the sound was dramatically reduced to a tolerable ...

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Learn more Right off the bat, the Sony WH-1000XM4 ... headphones — the $400 Bose 700. If $350 is in your budget for wireless noise-cancelling headphones, the XM4 should absolutely be high ...