The Climate Impact of the Usage of Headphones and Headsets

Abstract Based on disassembly studies, a life cycle assessment of the climate impact wireless over-ear headphone model Jabra Evolve2 85 (without charging station) is conducted regarding phases manufacturing, packaging, distribution, use and disposal. The total weight all components 280.7 g. materials can be categorized into polymers (61.7%), metals (20.9%), circuit boards (4.8%), Li-ion battery (4.6%), foam (3.5%), cables (3.0%) unidentifiable (1.7%). functional unit defined as audio transmission through stereo over its lifetime. lifecycle results in global warming potential 12.17 kg CO 2 -Eq with contribution manufacturing phase 81.2%, based an assumed lifetime 2,600 using hours. In context sensitivity analysis, repair scenario replacement headset modelled. Assuming doubled lifetime, per hour reduced from 4.7 g -Eq/h to 2.4 -Eq/h.