how to use a korean keyboard

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{"title":"Speech \/ Keyboard Input Handheld Language Translator 153.5 * 76.8 * 8.3mm","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/b8\/12\/5f9880c03c98a84f59e0e253b4f8-200x200-1.jpg","attrs":{"Price":"Negotiable","Brand Name":"FARSEER","Model Number":"V100","Minimum Order Quantity":"20pcs \/ Carton","Delivery Time":"5-8 work days","Place of Origin":"Shenzhen,China.","Payment Terms":"L\/C, D\/A, D\/P, T\/T, Western Union, MoneyGram","Supply Ability":"2000 pcs per month","Certification":"3c certificate","Packaging Details":"415*340*195(mm)","Product name":"Farseer translator offline simultaneous translator","OS":"Android 7.0","Color":"Silver grey","Size":"153.5*76.8*8.3(mm)","Display":"5.5'IPS 1920*1080pixels,2.5D Ceramic Glass","CPU":"1.5Ghz,Quad Core"}}