Relier Pairs Materials for technical useVersion en ligne What is involved in making a mobile phone? Match the following elements. par Jesús Espinosa 1 What materials is it made of? 2 What is it for? 3 How big is it? 4 The outer casing of mobile phones is typically made from... 5 How does it work? 6 How much does it cost? The average price for a free smartphone is currently anywhere between 400€ and 800€. Nowadays the average is more than 5 inches long (12.7 cm). For people to talk to each other from wherever they are. plastic (polycarbonate), aluminium and magnesium. They work like two-way radios: the phone converts the sounds of your voice into radio signals and transmits them to another phone, which converts them back into sound. Plastic, aluminium and other metals
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