HD 1080P Projector: DR. J Professional projector has native 1280*720P resolution supports 1080P & 4K decoding giving you a more detailed and clearer video experience. 9500:1 contrast ratio and 9500 lm of lightness provide bright lifelike colors with great detail. Supporting screen sizes up to 250 in so you can build your own immersive theatre at any time. Two-way Bluetooth 5.2: This mini projector supports you to connect external speakers or better sound quality or use the projector as a speaker to play music from your phone. WiFi Connection: This 1080P projector supports dual-band WiFi for easy wireless phone screen mirroring. The wifi connection will bring you a more stable and smoother same-screen experience. For watching streaming apps like Netflix and Hulu please use a TV stick (not included) or connect your laptop via HDMI. Portable Projector: This projector has a net content weight of 1.88lb measures 9 *8.5 *4 inches making it very portable.