Multi-function input HDMI/USB/AV/SD Card; Connect your PC, Laptop, DVD Player,USB Disk to enjoy videos or movies. The LED lamp works for about over 20,000 hours ,provide super clear picture.Portable design, easy to take and travel. Great for outdoor movies. Usually, when the projectors works, the fan will make noise to Radiating due to the highly temperature. It will be better that you can have a break after 4 to 5 hours using to avoid overheating.