[REAL Full-Sealed Optical Projector with Cooling System] VIZONY RD830 hd video projector is the REAL Full-Sealed Dust-proof projector on the market, fully enclosed optical engine, active heat dissipation, Dust-proof, reducing black spots, image quality loss, noise<27dB, long life using, making it more durable compared with other traditional open optical projectors or semi enclosed projectors; Also backed by a 3-YEAR warranty, professional customer service and free tech support is available. | [800 ANSI Full HD Native 1080P Projector 4K Support] VIZONY RD830 FHD Native 1080p projector adopted independent R&D intelligent noise reduction tech, greatly improve the brightness up to 800ANSI, at least 95% higher resolution and clarity than other 1080p WiFi projectors, with clearer images and more vivid image quality; Also it supports Ultra HD 4K Videos decoding, only support H.265 30hz/MP4 format not H.264 format, eliminate the anxiety of video stagnation, and bring you a true visual feast. | [WiFi6+5G/2.4G Dual Band WiFi+BT5.2] VIZONY 5G WiFi Bluetooth projector with WiFi6 chip, 5G+2.4G dual-band WiFi, it can achieve a max rate of 9.6G bps and strengthen the anti-interference ability, the transmission rate is faster than other smartphone projectors. 15W speaker can provide crisp and loud tweeter and bass output without external speaker. Latest BT5.2 which can connect with Bluetooth headsets and speakers wireless as you want. Bluetooth can only transmit Audio, but not Videos. | [Electric Focus+4P+4D Keystone Correction] VIZONY RD830 home TV projector with Electric Focus, one-click remote can easy obtaining clear image! Combined with ±50° vertical/horizontal Keystone Correction, plus 4P, allow you can adjust the image vertically/horizontally manually, it overcomes the limitations of room angle in various ways, bringing flexibility to front/side/ceiling projection. Besides, this HD movie projector with 50%-100% zoom allows you to adjust the image size without moving it. | [PPT Presentation via USB & Wide Connection] VIZONY 1080p WiFi outdoor movie projector can play Microsoft office & Adobe PDF files directly from USB stick and view them on projector, while others only support text format and need to connect the projector to a laptop/PC to project Excel/Word/PDF. This portable mini WiFi projector is equipped with HDMI*2/USB*2/AV/Headphone port which can properly compatible with chrome-cast/phone/tablet/PC/laptop/games etc for more fun of your home entertainment.