<p>Tips:4GB Recorder=built-in 4gb recorders</p> <p>Display:2.4 inch</p> <p>Screen resolution:320x240</p> <p>Music background playback:support</p> <p> synchronization:support</p> <p>Play mode:repeat play, single play, all loop</p> <p>TF card function:support max 128G memory card</p> <p>Variable speed playback:8 times shifting</p> <p>Video format resolution 320x240</p> <p>loudspeaker:support</p> <p>Radio function:support.Supporting Recording Radio</p> <p>Alarm clock:support</p> <p>Stopwatch:support</p> <p>Text reading: format, support bookmarks</p> <p>Battery:500mA polymer battery</p> <p>Recording function:support MIC recording, format supports MP3</p> <p>Life time:20hours of song playback in the headphone screen saver state. The video plays for 3-5 hours.</p> <p>Language: English\/Russian\/Japanese\/Korean\/French\/German\/Turkish\/Italian\/\/Dutch\/Portuguese\/Spanish\/Swedish\/\/Danish\/Polish\/Thai\/Hungarian\/Romanian\/Arabic\/Greek\/Indonesian and other languages of more than 20 countries.</p> <p>Audio format:APE, AAC, FLAC, MP3, WMA, OGG.</p> <p>Important Notice for Bluetooth:</p> <p>1. Can only connect to Bluetooth earphones or Bluetooth speakers, not to mobile phones or computers.</p> <p>2. Can not listen to Radio via Bluetooth. Please listen to radio via an earphone.</p> <p>3. Can not for data transmission.</p> <p>4. How to use Bluetooth? Please use our device to search your Bluetooth devices, such as Bluetooth earphones. Then \</p>