[{"text_idx": "#000002", "text": "Y sgrin diffiniad uwch-uchel 4K (>80% NTSC)"}, {"text_idx": "#000003", "text": "Ysgrifennu sgrin lawn, hawdd ei ysgrifennu a'i ddileu"}, {"text_idx": "#000004", "text": "Siaradwyr o ansawdd uchel, allbwn pw\u0302er 15W * 2"}]