See URL for details : https://www.researchsea.com/html/article.php/aid/11519/cid/6/research/electronics_and_telecommunications_research_institute_etri_/etri___s_cup_holder_charges_phones_wirelessly.html

Source : Asia Research News

See URL for details : http://www.engineerlive.com/content/new-charger-south-korea

Source : Engineer Live

See URL for details : https://www.environmental-expert.com/news/etri-s-cup-holder-charges-phones-wirelessly-726637

Source : Environmental Expert