Item Code:ALLOYSEED Audio Format Support:mp3,WAV Built-in Speaker:Yes Audio Video Support:MP4 Display resolution:480x360 Display Size:< 2" External Memory:Yes Certification:NONE Function:E-Book Reading,FM Radio,Voice Recorder,Photo Viewer Package:Yes Body Material:Plastic Dimensions (WxHxD):90.5MMx39.5MMx10MM Model Number:MP3 MP4 Radio Music Player Bluetooth:Yes WIFI:No Music playback:support MP3, WAV and other playback Recording support:FM MIC recording, format support MP3 WAV Image browsing support:BMP JPG format browsing Video format support:MP4 format (need to be converted on PC through the replacement tool) Advanced:Included (Recently Read Books, Markup, Autobrowse) System support:for WINDOWSXP/VISTA/WINDOW8 Recording format:MP3/WAV Name:MP4 MP3 Music Player Bluetooth-compatible:5.0, supports bidirectional transmission Colour:Black/Blue/Red/White Battery life:6 hours Net weight:about 31g mp3 player:mp3 mp3 bluetooth-compatible:player mp3 bluetooth-compatible consumer electronics:bluetooth-compatible mp3 player music player:mp4 player-compatible radios:FM radios Function:E-Book Reading,FM Radio,bluetooth DAC:MP3 Walkman MP3 1:Music Player MP3 2:bluetooth-compatible MP3