isdb t hd led tv with 50hz 60hz

{"cid":"91223769","title":"Custom ISDB-T HD LED TV supporting Sync Frequency 50Hz 60Hz optimized for educational training and e-learning platforms","imgUrl":"https:\/\/img.chinax.com\/nimg\/41\/71\/33df78b7956dd93b136ab423646b-200x200-1.jpg","attrs":{"Sync Frequency":"50Hz\/60Hz","Screen Size":"55 Inches","Storage":"16 GB","Audio Output":"20W Dolby Audio","Interface":"HD\/ LAN\/ VGA\/ USB\/ AV\/ RF\/ Digital Audio","Cabinet Color":"Black\/Option","Display Technology":"LED","Max Brightness":"300cd\/m2 (450cd\/m2 Optional)"}}