... Color Imprint, Laser EngravingImprint Locations:Reverse SideImprint Area1" x 1" (25mm x 25mm)Specifications: Storage1GB,2GB,4GB,8GB,16GBControllerClick WheelBattery LifeUp ... -inch Liquid Crystal Display with Blue-White LED Backlight, 320 x 240 Pixel ResolutionAudio file formatAAC, Protected AAC, MP3, MP3 VBR, ... AIFF and WAVDimensions L x W x H3.6" x 1.5" x 0.24" ( 94*41*9mm)Weight1.3oz ...