<b>Specifications:</b><br> √Bluetooth version: 5.0<br> √Product material: double-faced acrylic glass<br> √Built-in storage capacity: 32GB<br> √SD card: support 64GB,128GB<br> √Music Playtime: up to 60hours(internal playback)<br> √Music Format: MP3, WMA, OGG, APE, FLAC, and WAV ect.<br> √Recording Format: WAV, MP3<br> √Video Format: AMV, AVI <br> √Picture Browse: JPEG, BMP<br> √FM Receiving Frequency: 87.5 MHZ-108 MHZ<br> √E-book Format: TXT<br> √Product size(L×W×H): 4.05in*1.82in*0.27in<br> √Packge size(L×W×H): 6.53*4.17*1.89in<br> √Net weight:80g(2.8oz)<br> √Speaker: built-in loud speaker<br> √Lock key: lock the screen while playing the song<br> √Variable play speed: fast forward or fast backword<br> √System language: 26 languages<br>