Switchable ratio between 16:9 and 4:3LED lamp with very long lifespan up to 20，000 hoursEnhanced ventilation for improved stability and lifespanLow power consumptionSupport multiple input interfaces AV， VGA， HDMI， USB & SDBuilt-in loudspeakers & support earphoneLow noise & dustproof designMini size & light weight Specifications:Native resolution: 320 x 240Support resolution: 640 x 480Image System: LCDLamp Type: LEDInput Voltage: 12VBrightness: 48 LuxContrast: 300:1Lens: F=125Image size: 20 ~ 80 inchProjector distance: 1.25 ~ 4mColor: 16770KPower: 24WLoudspeaker: 1W x 2Input Interface: AV/VGA/HDMI/USB/SDOutput Interface: EarphoneSupport audio format: WMA， MP3， M4ASupport photo format: JPEG， BMP， PNGSupport video format: MPEG1， MPEG2， MPEG4， RM/RMVB， H264， MOV， MJPEG， FLVWorking temperature: -10 ~36��CSize: 127 x 126 x 57mmColor:White Package Included:1 x UC28 LED Projector1 x 100-240V Power Adaptor1 x AV Cable1 x Remote Control1 x Instruction Manual