Mini E-Ink Screen Mp3 Player 2.7inch Small Screen E-Book Reader Txt Novel Reading Lossless Sound Quality Supports Classroom Recording Alarm Clock Bluetooth 5.4 Supports External Playback No Blue Light, Eye-Friendly for Teenagers Long Battery Life Backlight Design for Night Reading 0Hz Refresh Rate Relieves Eye Strain Metal Casing with Lanyard Hole Design Simple Operation Retro Music Player Student Gift No Internet Access Anti-Addiction Feature