Headphones/Earphones

An air-tube headphone splits the audio path. A standard wire runs from your phone to a chest-height module where the speaker driver sits; from there a hollow plastic tube delivers sound to your ear canal mechanically, like a stethoscope. There is no electrical conductor in the tube section, so wire-conducted RF doesn't reach the ear. Your phone still emits RF that travels through the air around you — air tubes don't create a radiation-free bubble.

Australia's RF exposure limit is set by ARPANSA RPS S-1: 2.0 W/kg over 10 g of tissue. ARPANSA doesn't specifically endorse air-tube headphones, but the principle (increasing distance from the device) aligns with their published guidance. Look for tube sections visibly hollow (no wire inside) and published independent test data — DefenderShield publishes 95.16% ELF magnetic shielding at 60 Hz and 98.25% at 300 Hz (US Tech FCC-recognised lab). Stocked range: DefenderShield, iBrain, Cellsafe.