... files; Button: 7 keys (left, right, back, enter, vol+, vol-, power); Speaker: Built-in stereo speakers; Headset Interface: 3.5mm standard ... /60Hz; DC5V/900mA; Packing accessories: User Manual; USB cable; Power Charger; Machine Dimensions (L x W x H): 149 x 82 x ... 17.2mm; Machine Weight: 169.2g (Without Battery); Box size (L x W ...