Description 1. Why choose Tontion portable projector? a) Upgraded LEDs with 30% higher lumens output - brighter than other projectors on the market. b) Upgraded cooling fan - reduced fan noise, as low as laptop fan noise c) Large projected screen - relax your eyes from glare of the TV. d) Keystone function - achieve the perfect image. e) If you need the projector case, please E-mail to us. We will keep developing our projectors to provide enhanced products and service to our customers. 2. Specifications: Imaging technology: TFT LCD LED: 2400 LUX Contrast ratio: 1500:1 Aspect ratio: 16:10 Projection ratio: 1.4:1 Native resolution: 800x480 pixels Supported resolution: 1920x1080 pixels Keystone correction: ±15° (manual) Throw distance: 1.5-5m Screen size: 37-150 inches Connection: AV in/out, TF Cards, USB, HDMI Port, VGA Port are all included. MP3/WMA/ASF/OGG/AAC/WAV for Audio file, JPEG/BMP/PNG for image file, and 3GP(H.263,MPEG4)/AVI(XVID,DIVX,H.264)/MKV(XVID,H.264,DIVX)/FLV(FLV1)/MOV(H.264)/MP4(MPEG4,AVC)/MEP(MEPG1)VOB(MPEG2)/MPG(MPG-PS)/RMVB(RV40)/RM are all supported. 3. Warm notices: 1) Not recommended for PPT, Word, Excel or business presentations. 2) To connect the DBPOWER mini projector with tablets or smartphones, you need a wireless HDMI adapter (An MHL to HDMI cable for Android devices and a Lightning to HDMI adapter cable for iPhones/iPads). The Android device must support MHL. 3) To connect the mini projector with PCs/laptops, please adjust the PC/laptop display resolution to 800*600 or 1024*768, which provides the best clarity. We only recommend using the projector in a dark room. This will offer super sharp and clear images, but this effect will be diminished in lighter rooms.