Body: Zinc alloy fuselage Display: 2.4 inch /1.8 inch Screen resolution: 2.4 Inch screen resolution 320*240.1.8 Inch screen resolution 160*128 Dimensions: 2.4 inch 69*49.5*12.5mm1.8 inch 45*46*11.5mm Memory: 8G/16G Bluetooth function: Bluetooth 5.0. Support to connect Bluetooth headset and Bluetooth speaker. Music background playback: support LRC lyrics synchronization: support Play mode: repeat play, single play, all loop TF card function: support max 128G memory card Variable speed playback: 8 times shifting Video format AVI resolution 320*240.Video needs to be converted into video format through video converter. We will provide video converter. loudspeaker: support Radio function: support.Supporting Recording Radio.The radio must be plugged in with wired headphones. Alarm clock: support Stopwatch: support Text reading: TXT format, support bookmarks Battery: 500mA polymer battery Recording function: support MIC recording, format supports MP3 Life time: 20hours of song playback in the headphone screen saver state. The video plays for 3-5 hours. Language: English/Russian/Japanese/Korean/French/German/Turkish/Italian//Dutch/Portuguese/Spanish/Swedish/Czech/Danish/Polish/Thai/Hungarian/Romanian/Arabic/Greek/Indonesian and other languages of more than 20 countries.The 1.8-inch player does not support Hebrew. The 2.4-inch player supports Hebrew language, Audio format: APE, AAC, FLAC, MP3, WMA, OGG.