Body material: Metal Display: 1.8 Inch, resolution 160 * 128 Operation key: touch Memory: The player has no memory and needs to insert a memory card before it can be used. Tfcard expansion: the maximum support is 128gtf card expansion. Bluetooth version: 5.0. Can connect Bluetooth headset and Bluetooth speaker. Music format: ape, FLAC, AAC, MP3, WAV and other formats are supported, Equalizer: Yes, you can choose 6 music styles. Rock, funk, shiphoughton, jazz, classical, electronic. Playback mode: repeated playback and random play, all circular play. You can continue the last play. Video: support avi format video with resolution of 160 * 128. Video format needs to be converted through video converter, we can provide video converter. A-B repeat: Yes. Repeat up to 10 times. The maximum repetition interval is 10 seconds. Variable speed playback: supported. 14 levels of variable speed playback. Recording: support. Recording format wav. Radio: support. The headset needs to be plugged in as an antenna, which supports 87mhz-108mhz frequency band. It supports FM recording, automatic tuning, manual tuning and channel saving. E-book: it supports TXT format, automatic play, automatic play time, font size, background color, and player to delete e-book. You can choose the number of pages. Bookmarks are supported. Language: Support Chinese and English. Calendar: support Stopwatch: support Alarm clock: support Picture: support Package Contents: 1*MP3 Player 1*USB Cable 1*Instruction manual