Headphones
From Tardis Wiki, the free Doctor Who reference
Max Collins played Xbox using headphones, so as not to be detected by his parents. (PROSE: Joyride)
Max listened to internet pornography downloaded onto his computer through headphones. (AUDIO: torchwood_cascade_CDRIP.tor)
Noise-cancelling headphones actively cancelled out the waveforms of undesired external noises. (AUDIO: Dead Media)
