Wired noise-cancelling on-ear headphones
The noise-cancelling version of Sony's MDR-ZX110: wired, folding on-ear headphones whose noise cancelling runs on one AAA battery.
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Noise cancelling
Rated to cut surrounding noise by up to 95%, an average of about 13 dB in a simulated noise test. It lowers outside sound rather than silencing it.
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AAA battery power
One AAA alkaline battery is rated for about 80 hours of noise cancelling, or about 40 hours with a manganese cell. With the power switched off, they still play as ordinary passive headphones.
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Folding design
The ear cups fold up in one motion for carrying, and a plug adapter for in-flight audio is included.