These 3D-printed hearing aids could help people who are partially deaf to tune out unwanted background noise, but they also function as regular earphones.
Competition: Dezeen has teamed up with audio company Master & Dynamic to give away a set of lambskin-leather headphones, a headphone stand and a microphone designed for noisy environments (+ slideshow). More
Graduate shows 2015: these headphones by Royal College of Art graduate Gemma Roper clip to a cycling helmet and play music through the wearer's cheekbones so they are still able to listen out for vehicles (+ movie). More