Portable as well as with long playtime. The built in 180mAh rechargeable battery takes 2.5 hours for fully charge of 12 hours playback and it's designed of just 0.88 OZ with the dimension of 3.24*1.58*0.37 inch</br>2000 songs and more. Its preset 8 GB capacity (supports up to 64GB with Micro SD Card not included) allows you enjoying music up to 4000. For optimum use you can use AGPtek or Kingston memory card to avoid compatibility problem</br>Great Bluetooth enjoyment with your BT device (Bluetooth 3.0 or above). You can also connect it with your car of 0000 PIN code (not with random PIN)</br>Note: the BT function works only when your BT device is on pairing mode; the playing time may shorten on BT mode .Please try to charge the mp3 player for half a hour and then try to turn it on if the player can be turned on which means the battery of the mp3 player can be charged.</br>Lossless music playing. Provide great quality sound for the array of music and convenient to download (Support MP3 APE and FLAC WMA etc.) And you can add bookmark for your music files (including audio book it supports)</br></br>Product Description</br></br><b>For better music experience?? please use AGPtEK bluetooth headphones.</b><p><b>Specifications</b><br>Color: black <br> - Weight:0.88 OZ<br> - Dimension of 3.24*1.58*0.37 inch<br> - Audio format: MP3/WMA/OGG??APE??FLAC??WAV??AAC-LC??