... Large, clear display* Multi-format player supporting High Definition 720P video, MP3 audio and many other AV formatsModel:HD920 Specifications:. Display ... : 4GB, extendable to 16 GB TF card . Battery:1800mAH, 4 hours for video playing . Video Format:RM,RMVB,AVI,FLV,MP4,DAT ... Languages:English,Spanish,Franch,Portuguese,Italian and more . System:Windows2000/XP/vista/7,Mac OS X . AC Adapter:Input: AC ...