Specification Storage Memory Type Flash Memory Memory Capacity 4GB Expansion Slot TF Card Max support memory 8GB Screen Display Size 2.4 " Display Type TFT-LCD Screen Resolution 320X240 Pixels Support Formats Video Format AVI MPEG ASF RMVB 3GP WMV MP4 RM Audio Format MP3 WAV WMA Images Formats JPG GIF BMP E-Book Formats TXT Controls Control Type Button Data Transfer Connection Type USB (Universal Serial Bus) 2.0 Compatible Operating Systems Microsoft Windows 98/SE/2000/ME/XP/ Vista/7, Mac OS 8.6, Linux 2.4.2 Connections Headphones Jack 3.5 mm Stereo Jack Battery amp; Power Battery Type Built-in Rechargeable Lithium-Ion Battery Work Time 3-5 hours Audio Properties Microphone Built-in Built in out Speaker 0.5w Radio Tuner Bands FM FM Radio 87.5 MHz—108.0 MHz General Product Type MP3 / MP4 Player Language Multi-Languages Game NES Game Compatible Net Weight 0.06kg Dimension 85x 50x 8mm What's in the box Mp 3 Player, User Manual, USB (Universal Serial Bus) Cable,