YG550 Multimedia versionCan not connect the phone YG551 WiFi display versionWireless connection phone If you need to connect your phone, please choose WiFi display version. Model: YG-550/YG-551 Projector specifications:- resolution: 1280x720dpi (maximum support 1080P);- brightness: 2800 lumens;- color: 16.7 million;- ladder correction: +/- 15 ;-3d function: support red-blue 3D;- projector port: USB/VGA/HDMI/AV and 3.5mm audio output;- projection size and distance: 44-140 in., 1.5-4.5 m (preferably 60 in., 1.5m);- technology type: 4.3-inch 1LCD panel + LTPS + LED technology;- size and net/gross weight: 245x166x81.5mm (9.64x6.53x3.2in) and 1.25kg;- image format: support JPG, BMP, PNG, JPEG;- video format: support MP4, flv. 3GP, TS, MPG, RMVB, RM, VOB (no dolby)- music format: support MP3, WAV, M4A, FLAC, OGG, AAC, FLAC, APE; Multi-input interface: USB/HDMI input /VGA/3.5mm audio output 1. Connect PC/laptop/Android TV box via HDMI or VGA port2. Connect to Chrome Cast/Fire Stick via HDMI or USB port3. Connect DVD/Cable Box via AV port, connect PS3 PS4 or x-box ONE Wii via HDMI Cable, and enjoy games on the big screen