What Battery Does the Sony MDR-ZX110NC Use, and How Long Does It Last?
Back to my Sony MDR-ZX110NC ownership story
Short answer: the Sony MDR-ZX110NC uses one AAA battery (R03/LR03 size) to power its active noise-canceling circuit.
How long does the battery last?
Sony’s operating instructions list approximately 80 hours with a Sony alkaline AAA battery and about 40 hours with a Sony manganese AAA battery. Actual life can vary with conditions.
What happens when the battery gets low?
The manual says to replace the battery when the POWER indicator blinks or goes out. Sony also notes that sound and noise cancellation can become intermittent as the battery gets low.
Does the battery power the headphones themselves?
It powers the active noise-canceling electronics. These are still wired headphones, and they can fall back to passive operation when the battery is empty.
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The exact model in my Amazon history is the Sony MDR-ZX110NC.