<b>Specification</b> <br> Bluetooth version：4.2 <br> Product Size: 4.2 x 2.4 x 0.5 inch<br> Weight: 3.7 oz<br> Screen Size: 4.0 inch (540 x 960 Pix) <br> Internal Memory: 1G RAM+8GB ROM<br> Battery Capacity: 1800mAh<br> Input: 5V=1A<br> Charging Time: 90 Minutes<br> Music Playtime: 77 hours (Lab data) <br> Video Playtime: 10 hours (Lab data) <br> Expansion slot: Micro SD/TF Card (up to 128GB) <br> Music format：MP3, WMA, OGG, APE, FLAC, WAV, AAC-LC, ACELP, M4A<br> Video format: AVI, MKV, MPG, MPEG, RM, RMVB, VOB, MOV, FLV, ASF, DAT, MP4, 3GP<br> Photos format: JPEG, BMP, GIF<br> Ebook format: EPUB, TXT, PDF, DOCX, FB2, MOBI<br> Recording format: 3Gpp<br> FM Receiving Frequency: 87.5 MHz ~ 108 MHz<br><br> <b>What's in the Package</b><br> 1 × MP3 player<br> 1 × Type-C charging cable<br> 1 × Wired earbuds<br> 1 x Manual<br> <b>Tips: The device does not support the installation and use of apps other than the machine, including but not limited to Audible, Amazon music, iTunes, Spotify, Youtube, Apple music, Pandora, Google play, etc.</b>