Shape features: full-plating of aluminum alloy and the composition of polished stainless steel outer size: 61.8 × 103.5 × 10.5mm Product weight: 140g Screen size: 2.5 inches Screen resolution: 320 * 240 Other Description: Color LCD with LED backlight display video formats : MPEG-4 AVC/H.264 MPEG-4 encoding of the picture browser format: iPod can be synchronized browsing JPEG, BMP, Music format: compatible with AAC (16 to 320 Kbps), life insurance policies: life time of 6 hours video playback and 36 hours of storage media: hard drive storage capacity: 120GB other properties: Port: Dock connector, stereo mini-jack Random Annex: headphones, USB cable, dock adapter